FILE - In this Oct. 28, 2008 file photo, a Secret Service agent stands near then presidential candidate Barack Obama, background, at a rally in Norfolk, Va. Moving swiftly, the Secret Service forced out three agents Wednesday, April 18, 2012 in a prostitution scandal that has embarrassed President Obama. A senior congressman welcomed the move to hold people responsible for the tawdry episode but warned "it's not over." (AP Photo/Jae C. Hong, File)
April 21, 2012 10:02:07 PM PDT
April 21, 2012 --
It's been one week since the sex scandal in Colombia rocked the Secret Service.