The latest research into the link between germs and mental illness -- and what we all need to know.
Diane and her guests talk about private contractors in Iraq — why there are so many in Iraq, why they’re under increasing scrutiny, and ideas for transforming the policies that govern them or limiting their use altogether.
- Yochi Dreazen military correspondent for "The Wall Street Journal."
- Jeremy Scahill correspondent for Pacifica Radio's "Democracy Now," contributor to "The Nation," and author of "Blackwater" (Nation Books).
- Doug Brooks president of the International Peace Operations Association
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