Tuesday, April 5, 2022

Self-Aware Underware



Researchers create 'self-aware' algorithm to ward off hacking attempts
Oct 2021, phys.org

They found a way to hide signals in the unobservable "noise space" of the system:

Using the background noise within these systems' data streams, Abdel-Khalik and his students embed invisible, ever-changing, one-time-use signals that turn passive components into active watchers. 

"We call it covert cognizance," said Abdel-Khalik, an associate professor of nuclear engineering and researcher with Purdue's Center for Education and Research in Information Assurance and Security (CERIAS).

"Here, if someone sticks their finger in the data, the whole system will know that there was an intrusion, and it will be able to correct the modified data."

Sounds similar, although not exactly, to the inaudible sounds emitted by the commercials on your phone's music steaming service so that your smart tv can hear it and the two can figure out whether you're listening to their ads, because if the two devices are in the same room, there's a better chance you're with them.

Now that I think about it, maybe it's also like copyright traps, like when mapmakers put fake streets in their maps to catch the people copying their maps who also use the fake streets unknowingly, or when data harvesters put fake people on their marketing lists to catch marketers abusing their lists because they send advertisements to the fake people's addresses (who are usually real people who work for the data company).

Bottom line is -- we're talking about software being self-aware. Self-aware software. The future is now old man.

via Purdue University's Center for Education and Research in Information Assurance and Security:
Arvind Sundaram et al, Covert Cognizance: A Novel Predictive Modeling Paradigm, Nuclear Technology (2021). DOI: 10.1080/00295450.2020.1812349
Matthias Eckhart et al, Digital Twins for Cyber-Physical Systems Security: State of the Art and Outlook, Security and Quality in Cyber-Physical Systems Engineering (2019). DOI: 10.1007/978-3-030-25312-7_14
Yeni Li et al, Data trustworthiness signatures for nuclear reactor dynamics simulation, Progress in Nuclear Energy (2021). DOI: 10.1016/j.pnucene.2020.103612
Arvind Sundaram et al, Validation of Covert Cognizance Active Defenses, Nuclear Science and Engineering (2021). DOI: 10.1080/00295639.2021.1897731

Monday, April 4, 2022

Future Forecasting


The AI forecaster: Machine learning takes on weather prediction
Jan 2022, phys.org

Standard models are still good for the 2-3 week range, but this new deep learning model is on par with them for the 4-6 week range. If anyone read that scene in Neal Stephenson's Terminal Shock where they were predicting an extreme weather event 3 weeks out with a secret Chinese supercomputer -- this is what he's imagining. 

via American Geophysical Union: Jonathan A. Weyn et al, Sub‐Seasonal Forecasting With a Large Ensemble of Deep‐Learning Weather Prediction Models, Journal of Advances in Modeling Earth Systems (2021). DOI: 10.1029/2021MS002502


Study finds US flood damage risk is underestimated
Feb 2022, phys.org

Interesting example of how probability, statistics, and predictive analytics works -- 

The actual flood damage reports they used to "train" the models were publicly available reports from NOAA made between December 2006 and May of 2020. Compared with recent FEMA maps downloaded in 2020, 84.5% of the damage reports they evaluated were not within the agency's high-risk flood areas. The majority, at 68.3%, were located outside of the high-risk floodplain, while 16.2% were in locations unmapped by FEMA.

When they ran their computer models to determine flood damage risk, they found a high probability of flood damage for more than 1.01 million square miles across the United States, while the mapped area in FEMA's 100-year flood plain is about 221,000 square miles. Researchers said there are factors that could help explain why the differences were so large, including that their machine-learning-based model assessed damage from floods of any frequency, while FEMA only includes flooding that would occur from storms that have a 1% chance of happening in any given year [100 year storms].

-- Now remember, here in New Jersey for example, one of the fastest changing climate regions in the world, we had two 500-year storms in two years, one of them a flooding event, the other wind. I'm pretty sure the floods of September 2021 were a 100- if not 500-year storm. All in 10 years. 

Totally unrelated image credit: Fractal Forums, Christmas Ornament, 2019


Post Script, on Predictive Analytics:
Algorithm can predict possible Alzheimer's with nearly 100 percent accuracy
Sep 2021, phys.org

via Kaunas University of Technology: Modupe Odusami et al, Analysis of Features of Alzheimer's Disease: Detection of Early Stage from Functional Brain Changes in Magnetic Resonance Images Using a Finetuned ResNet18 Network, Diagnostics (2021). DOI: 10.3390/diagnostics11061071

Signal Recognition


New “Glowworm attack” recovers audio from devices’ power LEDs
Aug 2021, Ars Technica

The attack's complete passivity distinguishes it from similar approaches—a laser microphone can pick up audio from the vibrations on a window pane. 

Image credit: Artist’s impression of the view through future night-vision glasses, Lei Xu and NTU


Machine learning algorithm revolutionizes how scientists study behavior
Sep 2021, phys.org

Pattern recognition becomes gait recognition, body position recognition and finally to straight behavior recognition. We're there.

B-SOiD -- Behavioral segmentation of open field in DeepLabCut -- discovers behaviors by identifying patterns in the position of an animal's body. The algorithm works with computer vision software and can tell researchers what behavior is happening at every frame in a video.

via Carnegie Mellon University: Alexander I. Hsu et al, B-SOiD, an open-source unsupervised algorithm for identification and fast prediction of behaviors, Nature Communications (2021). DOI: 10.1038/s41467-021-25420-x


In new cognitive research, people's eyes reveal that clichés are underrated
Oct 2021, phys.org

This is why fb is banking so hard on vr --

The research process centered on the fact that the pupil—the black dot at the center of the eye—dilates in response to emotionally charged or intellectually engaging experiences.

"Many people don't realize that the pupil expanding is an indication—a measurable indication—that you're more engaged," Goldberg said. Her previous work used fMRI brain scans to show that the amygdala, considered the emotional center in our brains, responds more to metaphors than literal language. This time, the researchers wanted tighter time controls. It takes a couple seconds for blood to flow to a new section of the brain and light up an fMRI scan, but pupils respond in a fraction of a second.

via Princeton University: Serena K. Mon et al, Conventional metaphors elicit greater real-time engagement than literal paraphrases or concrete sentences, Journal of Memory and Language (2021). DOI: 10.1016/j.jml.2021.104285


Study reveals scale of data-sharing from Android mobile phones
Oct 2021, phys.org

An in-depth analysis of a range of popular Android mobile phones has revealed significant data collection and sharing, including with third parties, with no opt-out available to users. They examined the data sent by six variants of the Android OS developed by Samsung, Xiaomi, Huawei, Realme, LineageOS and /e/OS.

Even when minimally configured and the handset is idle, with the notable exception of e/OS, these vendor-customized Android variants transmit substantial amounts of information to the OS developer and to third parties such as Google, Microsoft, LinkedIn, and Facebook that have pre-installed system apps. There is no opt-out from this data collection.

Examples:
  • The privacy focused e/OS variant of Android was observed to transmit essentially no data.
  • The Xiaomi handset sends details of all the app screens viewed by a user to Xiaomi, including when and how long each app is used like the timing and duration of phone calls. 
  • The Huawei Swiftkey keyboard sends to Microsoft details of when a user is writing a text, using the search bar, or searching for contacts.
  • Samsung, Xiaomi, Realme and Google collect long-lived device identifiers, e.g., the hardware serial number, alongside user-resettable advertising identifiers. This means that when a user resets an advertising identifier the new identifier value can be trivially re-linked back to the same device, potentially undermining the use of user-resettable advertising identifiers.
  • Third-party system apps, e.g., from Google, Microsoft, LinkedIn and Facebook, are pre-installed on most of the handsets and silently collect data, with no opt out.
  • There may exist a data ecosystem where data collected from a handset by different companies is shared/linked. 

via Trinity College Dublin: Android Mobile OS Snooping By Samsung, Xiaomi, Huawei and Realme Handsets. 

Eternal Golden Brains


Smart robots do all the work at Nissan's 'intelligent' plant
Oct 2021, phys.org

Under any other situation this would be a joke:

"They do the paint jobs and inspect their own paint jobs."

Image credit: Sketch by David of Napoleon crowning himself, Jacques-Louis David

Saturday, April 2, 2022

Pandemimimetics


Tracking Facebook connections between parent groups and vaccine misinfo
Jan 2022, Ars Technica

A recent analysis of the network of vaccine misinformation finds that most of the worst misinformation sources are probably too small to stand out as being in need of moderation. The analysis also shows that the pandemic has brought mainstream parenting groups noticeably closer to groups devoted to conspiracy theories.

These researchers are special, because they were already doing vaccine misinformation network analysis before the pandemic. 

They use the most basic of network analysis tools, ForceAtlas2, to look at how groups connect to each other via likes of each other's group-page. Groups were also categorized as pro- or anti-vaccine, or neutral.

Here's some things that were true both before and after the pandemic started:
  • Pro-vaccine groups are double the anti-vaccine groups
  • Pro-vaccine groups are strongly connected to each other, but less connected to neutral groups
  • Anti-vaccine groups are also strongly connected to each other, but also more connected to neutral groups

But here's what happened during the pandemic:
  • Anti-vaccine groups became more closely connected with alternative medicine in general (think reiki, homeopathy, and circadian rhythms...just kidding, circadian rhythms used to be conspiracy theory, but now less so)
  • Alternative medicine is strongly connected to other conspiracy theories, like 5G or Fluoride in your Water
  • Alternative medicine is also strongly connected to parent groups
  • Anti-GMO is the most "in-between" the whole network, bringing together all the different groups into one massive supercluster of memetic evolutionary pressure.

So we have Alternative Medicine at the nexus of the pandemic-misinformation-network connecting parents to anti-vaccination groups. 

The rest of the article is about how Facebook failed to moderate misinformation on their network, and how, and what they can do better, but we're not really interested in that are we.

via The Dynamic Online Networks Lab at George Washington University: N. J. Restrepo, L. Illari, R. Leahy, R. F. Sear, Y. Lupu and N. F. Johnson, "How Social Media Machinery Pulled Mainstream Parenting Communities Closer to Extremes and Their Misinformation During Covid-19," in IEEE Access, vol. 10, pp. 2330-2344, 2022, doi: 10.1109/ACCESS.2021.3138982.


Post Script:
New technique, effective in mice, could help advance the use of probiotics
Oct 2021, phys.org

It sure looks like probiotics are good for us. The problems is they get destroyed by our own stomach acid.  So scientists designed a special protective envelope that helps the probiotics stay around long enough to do their thing in our digestive track. 

Would it be funny if eventually they eventually design it to be just like regular food?

via University of Wisconsin-Madison: Jun Liu et al, Biomaterials coating for on-demand bacteria delivery: Selective release, adhesion, and detachment, Nano Today (2021). DOI: 10.1016/j.nantod.2021.101291

Here's Another One:
After two hours, sunscreen that includes zinc oxide loses effectiveness, becomes toxic
Oct 2021, phys.org

The older you get, the more you realize that almost any product which claims to have health benefits almost never does, and is actually causing as much problems as it tries to solve. I don't really blame anyone, because the human body is too complicated, and we'll never fully understand it. In this case, they added zinc because it's supposed to be better at blocking sun, which it does, until it doesn't, and then it actually facilitates reactions that make the rest of the ingredients toxic. Sunscreen is a market worth $24 billion.

Cheat sheet:
Electronic Air Cleaners - ventilate with filtered air

via Oregon State University: Aurora L. Ginzburg et al, Zinc oxide-induced changes to sunscreen ingredient efficacy and toxicity under UV irradiation, Photochemical & Photobiological Sciences (2021). DOI: 10.1007/s43630-021-00101-2

Psyops Bots


Tailored messaging increases understanding of climate change in Republicans
Jun 0221, phys.org

Use of tailored advertising can increase awareness among Republicans of the dangers posed by climate change, using videos that featured "credible" personalities who spoke about the impact of climate change and what it might mean for the future. Conducted surveys of 1,600 people living in the targeted districts, asking about their views on climate change—both before and after the ad campaign.  They found that the campaign had increased understanding of the dangers of climate change in Republicans by several percentage points. They also found that it had convinced many of them that it was due to human activities.

via Yale Program on Climate Change Communication: Matthew H. Goldberg et al, Shifting Republican views on climate change through targeted advertising, Nature Climate Change (2021). DOI: 10.1038/s41558-021-01070-1


Majority of Covid misinformation came from 12 people
Jul 2021, The Guardian

In the last two months, our analysis of anti-vaxx content posted or shared to Facebook 689,000 times shows that up to 73% of that content originates from the leading anti-vaxxers included in this report.

The Disinformation Dozen -- including Robert F. Kennedy Jr., Joseph Mercola, and Ty and Charlene Bollinger, among others -- continually violate the terms of service agreements on Facebook and Twitter.

via Center for Countering Digital Hate: The Disinformation Dozen


'Likes' and 'shares' teach people to express more outrage online
Aug 2021, phys.org

Moderating extremism and performative outrage for the otherwise passive aggressive:

[Modified from the abstract] - Positive social feedback for outrage expressions increases the likelihood of future outrage expressions, consistent with principles of reinforcement learning. In addition, users conform their outrage expressions to the expressive norms of their social networks, suggesting norm learning also guides online outrage expressions.

Norm learning overshadows reinforcement learning when normative information is readily observable: in ideologically extreme networks, where outrage expression is more common, users are less sensitive to social feedback when deciding whether to express outrage. Our findings highlight how platform design interacts with human learning mechanisms to affect moral discourse in digital public spaces.

via Yale: How social learning amplifies moral outrage expression in online social networks, Science Advances (2021). DOI: 10.1126/sciadv.abe5641


Disagreeable people found to be more prone to conspiracy theories
Aug 2021, phys.org

More support for the fact that conspiracy theorists are mostly just regular people, they're more likely to be lonely and isolated, but they're still just regular people:

"Most people think conspiracy theorists are crackpots," he said. "Talking to these people, I felt there was more going on. Some wanted to socially connect with other people. A small subset wanted to take advantage of other people. I wanted to see what underlies these beliefs and theories."

via University of Oregon: Cameron S. Kay, Actors of the most fiendish character: Explaining the associations between the Dark Tetrad and conspiracist ideation, Personality and Individual Differences (2020). DOI: 10.1016/j.paid.2020.110543


Experiment shows groups of laypeople reliably rate stories as effectively as fact-checkers do
Sep 2021, phys.org

Remember, we could fix this right now if we wanted to:

"One problem with fact-checking is that there is just way too much content for professional fact-checkers to be able to cover, especially within a reasonable time frame," says Jennifer Allen, a Ph.D. student at the MIT Sloan School of Management and co-author of a newly published paper detailing the study.

"The average rating of a crowd of 10 to 15 people correlated as well with the fact-checkers' judgments as the fact-checkers correlated with each other. This helps with the scalability problem because these raters were regular people without fact-checking training, and they just read the headlines and lead sentences without spending the time to do any research."

via MIT: Scaling up fact-checking using the wisdom of crowds, Science Advances (2021). DOI: 10.1126/sciadv.abf4393


Facebook forced troll farm content on over 40% of all Americans each month
Sep 2021, Ars Technica

In the wake of the 2016 election, Facebook knew it had a problem. Pages and fake accounts created by the Kremlin-backed Internet Research Agency had spread through the social network and drawn massive engagement from real users. Facebook knew it had to get things under control. [It didn't.]

The troll farms highlighted in the report primarily targeted four different groups: American Indians, Black Americans, Christian Americans, and American women. 

One of the researchers described users thus: "They tend to love these Pages. They like how entertaining the posts are and how they reaffirm their already-held beliefs."

via MIT Technology Review: Troll farms reached 140 million Americans a month on Facebook before 2020 election, internal report shows, Sep 16 2021 [soft paywall]


Rates of infectious disease linked to authoritarian attitudes and governance
Sep 2021, phys.org

An unconscious code of conduct that helps us stay disease-free, including a fear and avoidance of unfamiliar—and so possibly infected—people -- When infection risk is high, this "parasite stress" behavior increases, potentially manifesting as attitudes and even voting patterns that champion conformity and reject "foreign outgroups"—a core trait of authoritarian politics.

Now, a new study, the largest yet to investigate links between pathogen prevalence and ideology, reveals a strong connection between infection rates and strains of authoritarianism in public attitudes, political leadership and even lawmaking. [This study was conducted prior to covid data, circa 2018.]

They found that the more infectious US cities and states went on to have more authoritarian-leaning citizens. The most authoritarian US states had rates of infectious diseases—from HIV to measles—around four times higher than the least authoritarian states, while for the most authoritarian nations it was three times higher than the least. Moreover, in both nations and US states, higher rates of infectious disease correlated with more "vertical" laws—those that disproportionately affect certain groups, such as abortion control or extreme penalties for certain crimes. This was not the case with "horizontal" laws that affect everyone equally.

via University of Cambridge: Leor Zmigrod et al, The psychological and socio-political consequences of infectious diseases: Authoritarianism, governance, and nonzoonotic (human-to-human) infection transmission, Journal of Social and Political Psychology (2021). DOI: 10.5964/jspp.7297


“Hacker X”—the American who built a pro-Trump fake news empire—unmasks himself
Oct 2021, Ars Technica

This is how it really happens. 

This article was a bit controversial when it came out, because the outfit, Ars Technica, was being accused on not vetting their source enough, and simply providing him a means to feel better about himself after a healthy apology, but also enabling him to prolong his campaign of deception. 

Regardless of all that, I was just intrigued by the description of how it all goes down:
From that moment onward, the hacker and office staff would joke about the stuff they were being assigned to write—like a conspiracy-laden writeup on "chemtrails" or a piece on "lemons curing cancer" —- thinking that only a small "ultracrazy" percentage of readers actually believed what was being written. ...

Next, this is exactly how the Flash Crash 2010 went:
The new publishing strategy, along with the additional fake news sites, caused a rapid spike in traffic. As Willis puts it, this all felt "like playing a video game and getting new high scores to me. I did not think of the readers as people but more like background characters in a video game. I am neurodiverse and have major issues with understanding empathy due to my condition. Crunching numbers is something I love to do; these were numbers I wanted to go up, and I would do it with no emotional attachment to the material or people."


Social media bots may appear human, but their similar personalities give them away
Nov 2021, phys.org

Bot or not --

While the language used by any one bot reflected convincingly human personality traits, their similarity to one another betrayed their artificial nature.

Their results showed that, individually, the bots look human, having reasonable values for their estimated demographics, emotions and personality traits. However, as a whole, the social bots look like clones of one another, in terms of their estimated values across all 17 attributes.

Overwhelmingly, the language bots used appeared to be characteristic of a person in their late 20s and overwhelmingly positive.

"Imagine you're trying to find spies in a crowd, all with very good but also very similar disguises," says Schwartz. "Looking at each one individually, they look authentic and blend in extremely well. However, when you zoom out and look at the entire crowd, they are obvious because the disguise is just so common."

"There is a lot of variation in the type of accounts one can encounter on Twitter, with an almost science fiction-like landscape: humans, human-like clones pretending to be humans, and robots," says Giorgi.

via University of Pennsylvania and Stony Brook University: Salvatore Giorgi et al, Characterizing Social Spambots by their Human Traits, Findings of the Association for Computational Linguistics: ACL-IJCNLP 2021 (2021). DOI: 10.18653/v1/2021.findings-acl.457


Facebook uncovers Chinese network behind fake expert
Dec 2021, BBC News

Just wanted to make sure we understand how this works:

"It added that the operation used Virtual Personal Network (VPN) infrastructure to conceal its origin, and to give fake Swiss biologist Wilson Edwards a more rounded personality. It also said that his profile photo also appeared to have been generated using machine-learning capabilities."

I'm not so much interested in the misinformation aspect of this, only the "fake people" aspect, where social media companies use fake numbers to inflate the amount of real people who use their services, you know kind of like pumping the price of your own stuff at an auction by secretly bidding on it.

Link to recent post on the disease model and how it works in the noosphere:


Conspiracy mentality around the globe tends to be particularly pronounced on the political fringes
Jan 2022, phys.org

The two surveys constitute the largest investigation of the subject of conspiracy mentality conducted to date, both in terms of their size with around 100,000 responders and the fact that they were undertaken in 26 different countries. 

Also considered was whether a perceived lack of political control—because, for example, an individual's preferred political party has been excluded from government—influenced the link between political orientation and conspiracy mentality; this outcome might be expected due to the effects of what psychologists call "control deprivation."

And what could also be described as "Conspiracy theories are for losers" (pun intended)

via Johannes Gutenberg University Mainz: Roland Imhoff et al, Conspiracy mentality and political orientation across 26 countries, Nature Human Behaviour (2022). DOI: 10.1038/s41562-021-01258-7


Researchers find new way to amplify trustworthy news content on social media without shielding bias
Feb 2022, phys.org

The problem is that these businesses don't care --

"Social media sites continue to amplify misinformation and conspiracy theories."

They measured content on the reliability of the source and the political diversity of their audience.

"The algorithm ends up picking the wrong signal and keeps promoting it further."

So it sees that we like it, so it gives us more; but we don't realize that we actually like low-credibility information, because it has a higher likelihood of being more interesting by way of its being fake; real things are complicated, and don't fit neatly into the categories in our heads, the ones that help us determine whether something is "my kind of thing". It's harder to generate your own opinion about something that's nuanced, because it requires you to re-assess what "your thing" really is, and that's hard.

By the way, they're using NewGuard Reliability Index to rate the news sources. [wiki]

They found that incorporating the partisan diversity of a news audience can increase the reliability of recommended sources while still providing users with relevant recommendations.

^That's some high quality reverse recursion right there.

"Ciampaglia and his colleagues propose social media platforms adopt this new strategy in order to help prevent the spread of misinformation."

Right...

via University of South Florida, Indiana University and Dartmouth College: Giovanni Ciampaglia, Political audience diversity and news reliability in algorithmic ranking, Nature Human Behaviour (2022). DOI: 10.1038/s41562-021-01276-5


How can we get better at discerning misinformation from reliable expert consensus?
Feb 2022, phys.org

There's a lot of work being done on misinformation these days, and it's good to see. But I have to draw the line somewhere as to how much I bother to archive here. 

This one makes the cut:

2019 study by Yale University which found that people believe a single source of information which is repeated across many channels (a 'false consensus'), just as readily as multiple people telling them something based on many independent original sources (a 'true consensus').

"We found that illusion can be reduced when we give people information about how the original sources used evidence to arrive at their conclusions," Dr. Connor Desai says. [Full circle, see the very top article in this post.]

For instance, over 80 percent of climate change denial blogs repeat claims from a single person who claims to be a 'polar bear expert'.

via University of New South Wales: Saoirse Connor Desai et al, Getting to the source of the illusion of consensus, Cognition (2022). DOI: 10.1016/j.cognition.2022.105023

Also: Sami R. Yousif et al, The Illusion of Consensus: A Failure to Distinguish Between True and False Consensus, Psychological Science (2019). DOI: 10.1177/0956797619856844

Image credits:
[Top to Bottom]

Friday, April 1, 2022

Bad Medicine


New study finds contaminants in many generic drugs may have harmful effects
June 2021, phys.org

I'm confused when I hear people say that there is no difference between generic drugs and commercial-branded drugs. I know that they're supposed to be the same, and I even know the manufacturers of the generic drug want them to be the same. But there really is a difference; quality control is the difference:

Nitrosamines were first noticed as an impurity in heart medications which also often have valsartan or losartan as active ingredients. Since 2018, this type of toxin has led to multiple contamination recalls by both Health Canada and the U.S. Food and Drug Administration (FDA). They can be found in generics as early as 2012 and nitrosamines are now found in many different types of medications.

via University of British Columbia: Joseph Uche Ogbede et al, A genome-wide portrait of pervasive drug contaminants, Scientific Reports (2021). DOI: 10.1038/s41598-021-91792-1

I will make another comparison here to the difference between natural remedies and medical drugs. The problem with natural cures is not whether or not the stuff works, it's more complicated than that, and unfortunately, the kinds of people who choose these alternative treatments tend to be less interested in the nuance.

The best example comes from teething tablets made of some hard-to-pronounce plant that grows in some hard-to-reach place on Earth. You're supposed to give the tablets to your teething toddler. The problem is that in the process of obtaining this unobtanious plant, the manufacturer also obtains some belladonna, since it grows right next to unobtainium. (Kind of like how asbestos "grows" right next to talc.)

But since nobody is really looking at what's in the teething tablets, and they're certainly not looking for belladonna, yours now contains some belladonna, but that's not listed on the ingredients because even the manufacturer doesn't know it's there. It was an accident, I swear! Now your kid is ingesting a whole lot of belladonna every day, and since it's toxic, your kid is about to lose their liver, and boy was that fast, because now they're dead. This is a true story, and it happens all the time, with all kinds of alternative medicine. It's an accident; it's not intentional. Yes you can blame the company that makes it, but not as much as you would blame them if they knew they were doing it. (Johnson and Johnson knew.)

The guy who started selling radioactive underwear back in the early 1900's also did not intend to kill people. The radioactive pillows and the radioactive toothpaste too. Sometimes you don't have to be malicious to f*** shit up.