Darrell Issa Secret Service director resigns under fire U.S. Secret Service Director Julia Pierson resigned under fire on Wednesday after a series of securi... Oct 01, 2014 11:16 PM EDT Secret Service director faces grilling over security breaches The head of the U.S. Secret Service is expected to face blistering questions from lawmakers on Tuesd... Sep 29, 2014 08:09 PM EDT