CIA pick William Burns signals a turn to diplomacy for the nation's spy agency Jenna McLaughlin WASHINGTON — In the summer of 2010, the Obama administration had a thorny problem to solve. The FBI was on the verge of finally arresting 10 members of an undercover network of “illegals,” Russian sleeper agents who had spent decades embedding themselves in American society, but senior officials wanted to salvage the administration’s ongoing diplomatic efforts to reset relations with Moscow. The White House was concerned the arrests would undermine Moscow’s help in pushi...