A series of suicide bombings last night at a residential compound in Riyadh, Saudi Arabia left at least 20 dead and many wounded.

An expert Al Qaeda analyst talks about scrutinizing the Riyadh bombings to see if the attacks carry the signature of the terrorist network.

Saudi Arabia has long been a flashpoint for terrorism. We track the history of terrorism-related violence in the Arab country.

A preview of the major players and innovations being featured this year at the O'Reilly Bioinformatics Technology Conference in San Diego.

The University of California is banning dating between professors and students. We speak with a professor who married one of his students and thinks the ban is a bad idea.

Oral historian David Isay talks about his latest project, StoryCorps, in which trained facilitators help people off the streets interview their loved ones in small recording studios placed public spaces across the United States.

Filmmaker Neil Labute has made his reputation telling stories that highlight the cruel side of human nature, and his latest movie "The Shape of Things" appears to be no exception.