Why is it a surprise to journalists that the Bushies lied about WMD?

The New York Review of Books: Now They Tell Us
"In the period before the war, US journalists were far too reliant on sources sympathetic to the administration. Those with dissenting views—and there were more than a few—were shut out. Reflecting this, the coverage was highly deferential to the White House. This was especially apparent on the issue of Iraq's weapons of mass destruction— the heart of the President's case for war. Despite abundant evidence of the administration's brazen misuse of intelligence in this matter, the press repeatedly let officials get away with it. As journalists rush to chronicle the administration's failings on Iraq, they should pay some attention to their own."