In this Oct. 7, 2012 Dan Rooney watches warm ups before an NFL football game between the Pittsburgh Steelers and Philadelphia Eagles in Pittsburgh, Sunday, Oct. 7, 2012. Rooney is step

 

              In this Oct. 7, 2012 Dan Rooney watches warm ups before an NFL football game between the Pittsburgh Steelers and Philadelphia Eagles in Pittsburgh, Sunday, Oct. 7, 2012.  Rooney is step
In this Oct. 7, 2012 Dan Rooney watches warm ups before an NFL football game between the Pittsburgh Steelers and Philadelphia Eagles in Pittsburgh, Sunday, Oct. 7, 2012. Rooney is stepping down as the U.S. ambassador to Ireland, a post he assumed after backing President Barack Obama's presidential campaign despite being a lifelong Republican. The embassy in Dublin says the 80-year-old Rooney resigned Friday, Dec. 14, 2012 and returned to the United States. Press officer John Murphy says Rooney met with Irish Prime Minister Enda Kenny and President Michael Higgins during a final round of engagements this week.(AP Photo/Gene J. Puskar)