(Editor's note: This story has been updated with comments from Sen. Roger Wicker (R-MS).) “I hope this damn thing works . . .” It’s the caption of a military cartoon that Robert Behler, the Pentagon's former chief weapons tester, says once hung outside his office -- depicting a World War I soldier preparing to throw a hand grenade. The job of Behler’s former organization -- the Office of the Director of Operational Test and Evaluation (DOT&E) -- is to...