FILE - In this April 25, 2007 file photo, U.S. Attorney Patrick Fitzgerald speaks at a news conference at the federal building in Chicago about the arrest of John P. Tomkins, 42, of Dubuque, Iowa, who... more 
FILE - In this April 25, 2007 file photo, U.S. Attorney Patrick Fitzgerald speaks at a news conference at the federal building in Chicago about the arrest of John P. Tomkins, 42, of Dubuque, Iowa, who was arrested and charged with sending dud pipe bombs and threatening letters to investment companies in Denver and Kansas City in an effort to drive up stock prices. On Wednesday, May 23, 2012, Fitzgerald's office in Chicago announced that he was stepping down as U.S. Attorney for the Northern District of Illinois effective June 30, 2012. Fitzgerald has held the post for more than a decade. (AP Photo/Charles Rex Arbogast, File) less 
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Associated Press | Photo By Charles Rex Arbogast, File
Wed, May 23, 2012 3:53 PM EDT