Brian Shephard had a long and storied career in the Federal Bureau of Investigation. From 1972 to 2006 he worked cases involving both domestic criminals and Soviet spies in the United States. One of the cases he worked on involving a whistleblower at Archer Daniels Midland Co. in Decatur, Illinois, served as the basis of the 2000 nonfiction book The Informant, which in 2009 was made into a movie starring Matt Damon, But some of the activities of the FBI in recent years have shaken him to his core. In an interview with WVW TV, Shephard pointed to two FBI...