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The Source: The Odd And Sometimes Icky Science Of Humans At War

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From shark repellent and caffeinated meat to the high-tech fashion of war and diarrhea as a national security threat, "Grunt: The Curious Science of Humans at War" by best-selling, non-fiction writer Mary Roach addresses oddball topics not found in any other book about our nation's defenders. 

Roach is infectiously curious, with a knack for unearthing the interestingly icky and a humorous style that makes tackling uncomfortable subjects bearable. In her latest endeavor, Roach delves into the science behind soldiers' most challenging issues and developments to help alleviate them. 

A self-described "goober with a flashlight, stumbling into corners and crannies," Roach has previously explored the sciences of eating ("Gulp"), death ("Stiff"), sex ("Bonk") and ghosts ("Spook"). 

Guest: Mary Roach, "Grunt: The Curious Science of Humans at War"