Topics included the opioid crisis, nuclear weapons, and "beautiful clean coal."
It's not just useless crap.
Drugs have been found in wastewater around the world.
The 20 ideas, trends, and breakthroughs that will shape our world in 2014
Now that recreational marijuana is legal in two states, lawmakers and law enforcement have to grapple with how best to deal with cannabis-impaired drivers.
The science of drug muling
Synthetic marijuana has been shown to get people good and high. But this is not your parents' weed.
By turning its crime problem into a data problem, Santa Cruz is reinventing police work for the 21st century
His sensors could help automate everything from therapy to police work
The study aimed to test whether Taser devices have caused heart-related problems or death in meth-addled suspects
Bold innovation or terrible idea? Your guide to the experiments that only sound scary—and the lab work you truly should lose sleep over
The FDA finds dangerous levels of medications in weight-loss supplements
The unfair science behind the M(J) Phelps suspension
Sewage is more than just filth. It's evidence of our worst habits, everything from caffeine to cocaine, all ingested and flushed down the toilet. Now scientists are using wastewater to drug-test entire cities, and the results are sobering
Ted Berger has spent the past decade engineering a brain implant that can re-create thoughts. The chip could remedy everything from Alzheimerâ€™s to absent-mindednessâ€”and reduce memory loss to nothing more than a computer glitch
Technology may be ushering in a golden age of stalking, in which predators use GPS, cellphones and other devices to track and terrorize.
In the dark and chatty world of avatars and assumed identities, this cybercop is a virtual Sybil, trolling for creeps and thieves.
Space-launched darts that strike like meteors
New databases and digital techniques are broadening the kinds of evidence available to the crime scene investigator.
In his lab far from the scene of a crime, Skip Palenik forges unbreakable chains of evidence from dust & detritus. Let's watch the master at work.
How safe can a citizen expect to be in a post 9/11 city? What technology can a city use to make its citizens safe?
Tollbooths, ATMs, doctors' offices, online chat: You leave critical personal data behind wherever you go. Let's follow one American as he scatters his digital DNA.