Secret Service Agent Clint Hill talks to 60 Minutes' "Overtime"

Secret Service Agent Clint Hill discusses the recent shooting of Congresswoman Giffords with 60 Minutes.  The link includes Mike Wallace's emotional 1975 interview with Hill.  This interview, and the never before told story of the second interview that occurred, is described in great detail in The Kennedy Detail: JFK's Secret Service Agents Break Their Silence by Gerald Blaine and Lisa McCubbin.