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High food prices have often been cited as a factor behind mass protest movements. But a group of researchers say food prices can actually be used to predict when social unrest will occur. And according to their mathematical modeling, we've hit the threshold for more waves of riots.

Can't wait for the presidential debate? We offer a "Pop-Up Politics" virtual face-off over key issues in the election. We've added pop-up bubbles to stump speeches to give context to the candidates' statements on the war in Afghanistan, energy and the economy.

Under the federal health law, adult children can remain on parents' insurance plans until they reach age 26. Parents may find out about their daughters' prescriptions for birth control pills from notices of insurance benefits.

Thanks to the investments of all who donated during our recent drive, over 36 challenges were met. We are now able to purchase 6 CD players, 8…

The Arab Spring is in its second autumn, but violent upheaval in Syria and Bahrain indicates the uprisings are not over. Guest host Celeste Headlee discusses what's in store for two countries the U.N. calls the biggest human rights offenders. She speaks with Al Jazeera's Abderrahim Foukara and Maren Turner of Freedom Now.

The roots-folk singer talks to David Dye about Sing the Delta, her first album in eight years.

Certain things always get attention during a presidential contest, including debates and gaffes. They don't really matter, one political scientist suggests.

Police received a tip that revived the 37-year-old search for the Teamsters boss, but after running tests, it turned up empty.

Melissa Block profiles several of the newly announced 2012 MacArthur Fellows. In this segment she speaks with Laura Poitras, a documentarian who is making a trilogy of films about the post-Sept. 11 world.

In another demonstration of how different the partisan lenses are through which voters view the political landscape, a new poll finds most Democrats dismiss the notion of pollster bias in surveys showing President Obama ahead of Mitt Romney. Republicans, by and large, believe it.