Exposé's first episode of the season, "Think Like a Terrorist (Pt. 1)" premieres tonight on PBS. Check local listings for your area. Hear how investigative reporter Carl Prine "cases" America's most dangerous chemical sites.

>> Watch Carl Prine talk about his experiences as a National Guard in Iraq in a web exclusive interview.

The EXPOSÉ: America's Investigative Reports series is produced by Thirteen/WNET New York in association with CIR.