Taking a stand against 'killer robots'

Lethal autonomous weapons (or killer robots as the media likes to call them) are the subject of intense discussion in the corridors and committee rooms of the United Nations in Geneva this week.

Rethinking nuclear security efforts

What is the best way to prevent countries from acquiring nuclear weapons? The vast majority of nonproliferation efforts attempt to control access to sensitive technologies. However, a new study by Scott Kemp, an assistant ...

UK spies: Nations are hiring cybermercenaries

A British intelligence report said Wednesday that other nations are hiring hackers to launch attacks against their enemies, a trend it described as particularly worrying.

Sea hares outsmart peckish lobsters with sticky opaline

Sea hares are not the favourite food choice of many marine inhabitants, and it's easy to see why when you find out about the chemical weapons they employ when provoked – namely, two unpalatable secretions, ink and opaline, ...

Revealing a pollutant's Achilles' heal

Nitric oxide (NO) is a versatile free radical that plays central roles in the environment as well as living organisms. At low concentration in the human body, for example, NO protects organs against pathogens by acting as ...

New forensic method could help police solve crimes

(Phys.org) -- Forensic researchers at Florida International University have developed a groundbreaking method that can tie a shooter to the ammunition used to commit a crime, giving law enforcement agencies a new tool to ...

Hackers claim to take down US tear gas maker site

The "Anonymous" hacking group on Tuesday claimed to have shut down the website of security firm Combined Systems, which it accused of providing the tear gas used in crackdowns on protests.

Trying out carbon to treat toxic sediment

On the surface, Canal Creek looks like a postcard Chesapeake Bay tributary, with red-winged blackbirds swooping over the tidal marsh lining its banks.

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