Terry Gross

Retired U.S. Army Lt. Gen. Ricardo Sanchez commanded ground troops in Iraq from 2003 to 2004; it was on his watch that the Abu Ghraib prison scandal took place. Subsequently, Sanchez has vocally criticized the conduct of the Iraq war — especially the Bush administration's "catastrophically flawed, unrealistically optimistic war plan." His new book is Wiser in Battle: A Soldier's Story.

Al Gore made waves for his work raising awareness on climate-change issues. Another poisonous environment has captured his attention as well: a climate that threatens reasonable public discourse.

Author Charles Ardai is founder of Hard Case Crime, a publishing group that reprints classic crime fiction and publishes new pulp fiction in paperback editions. Ardai, who writes under the pen name Richard Aleas, has won the Edgar Award for mystery writing.