http://sports.espn.go.com/nfl/news/story?id=3396443 5/14/08 WASHINGTON -- As the media gathered in a Capitol briefing room Wednesday afternoon, aides for Sen. Arlen Specter, R-Pa., flipped on the TV in anticipation that Specter would deliver a statement to the Senate critical of the NFL's investigation into Spygate. But he never made it to the floor. A lengthy exchange on food aid proved to be a more pressing issue. Nonetheless, Specter walked into the briefing room -- his statement having been entered into the congressional record -- and challenged the NFL and commissioner Roger Goodell to appoint an independent investigation of the New England Patriots' videotaping practices. Specter, the ranking Republican on the powerful Senate Judiciary Committee, suggested something along the lines of the Mitchell report commissioned by baseball to delve into performance-enhancing drugs in the game. Whether Congress will take up the senator's cause is a different matter. ESPN.com posted 5/15/08