Can journalists get too cozy with their official sources?

At 2007 Radio-Television Correspondents Association Dinner, top journalists were literally dancing with a top source. These are social/charitable events where journalists and newsmakers are expected to have some fun, but is it symbolic of too much coziness? . . . . . . . In 2003, a CNN executive boasts about giving the Pentagon an advisory role on who its on-air experts would be during the controversial Iraq war. . . . . . . . Whether dealing with political leaders or athletes, the quest for access to newsmaker sources can undermine independent journalism, according to indy TV host Cenk Uygur of The Young Turks, one of the most successful web-based TV shows.