"A $70m lawsuit filed by Dan Rather, the veteran former newsreader for CBS Evening News, against his old network is reopening the debate over alleged favourable treatment that Bush received when he served in the Texas Air National Guard during the Vietnam war. Bush had hoped that this controversy had been dealt with once and for all during the 2004 election.
Rather's lawsuit makes other serious allegations about CBS succumbing to political pressure in an attempt to suppress important news stories. In particular, he says that his bosses at CBS tried to stop him reporting evidence of torture at Abu Ghraib prison in Iraq. According to Rather's lawsuit, "for weeks they refused to grant permission to air the story" and "continued to raise the goalposts, insisting on additional substantiation". Rather also claims that General Richard Meyers, then head of the Joint Chiefs of Staff, the top military official in the US, called him at home and asked him not to broadcast the story, saying that it would "endanger national security".
http://www.guardian.co.uk/world/2008/dec/28/dan-rather-cbs-lawsuit-bush