Obama Secret Service Agent Busted for DUI 12.30K Adrian Chen 08/17/11 05:21PM Filed to: the president the president Secret Service Barack Obama Iowa Drunk Driving Gettypic Tweetg Tweetd Off-duty Secret Service agent Daniel L. Valencia was arrested for suspected drunk driving in Iowa on Saturday, where Obama was stopping on his bus trip. Maybe we now know who's responsible for all those Joe Biden motorcade accidents?