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The seeds, which are used to make ricin but are not dangerous by themselves, tested positive in a screening center for hazardous substances.

One 1980s graduate of an elite prep school remembers witnessing what kids used to call a "lineup." It was such a toxic culture of power and privilege, she says, many guys didn't even try to hide it.

Deborah Blum's book, The Poison Squad, tells how Harvey Washington Wiley and his band of chemists crusaded to remove toxins, such as arsenic and borax, from food. How? By testing them on volunteers.

Up to half of all patients who survive emergency medical treatment in the intensive care unit have mental problems when they return home. Doctors studying the problem say it starts with delirium.

States are blocking foreign IP addresses from their election websites. But it won't stop determined hackers and it could frustrate voters who live overseas.

Warming oceans and development threaten the West Coast's wild salmon. So activists started a traveling celebration to draw attention to the plight of the sockeye in Canada's Fraser River.

Out of over 100 songs submitted for a DIY musician conference, Jilian Linklater's "Break Up With Your Best Friend" stood out to NPR Music's Bob Boilen.

Hundreds of nutritional supplements contain unapproved pharmaceutical ingredients, according to an FDA database. So why isn't the agency doing more to get them recalled?

The biggest bloc of Taiwan's few remaining world allies is in Central America and the Caribbean. But even that solidarity is splintering.

The Supreme Court has upheld a state law requiring voters' IDs to have street addresses, which many reservations do not use. Native American groups are now scrambling to prepare for Election Day.