Brad Thor/SHADOW OF DOUBT: Brad Thor, whose legendary Scot Harvath thrillers are so real and whose take on global affairs are so astute and predictive, he was recruited into the Department of Homeland Security’s “Red Cell” program: an elite group of writers and artists commissioned to brainstorm terrorist scenarios for the U.S. government. “What I developed there stays there – that was the deal,” Thor states. “That said, the ideas I come up with for my novels are created in the same way the scenarios for the Red Cell Program are.”recruited into the Department of Homeland Security’s “Red Cell” program: an elite group of writers and artists commissioned to brainstorm terrorist scenarios for the U.S. government. “What I developed there stays there – that was the deal,” Thor states. “That said, the ideas I come up with for my novels are created in the same way the scenarios for the Red Cell Program are.”