Terry Gross

In his new book The Elements of Murder: A History of Poison, chemist John Emsley chronicles cases of accidental and intentional use of lethal substances throughout the ages. Some say Beethoven and Mozart were poisoned to death.

Boston Herald sports columnist Howard Bryant is author of Juicing the Game. Baseball in the '90s — with greater profit and more record breakers than ever — has come to be known as "The Juiced Era." But the dark side has been the use of performance-enhancing drugs such as steroids.

Helen Thomas has been covering the White House for 62 years. She gives us an inside look at the White House Press Room and comments on the recent scandals surrounding the Valerie Plame name leak and the possible involvement of White House deputy chief of staff Karl Rove.