PlameGate Update: Novak Goes After Armitage

From CBS News:

Syndicated columnist Robert Novak has turned on his own source. Novak says Richard Armitage, the man who told him Valerie Plame was a CIA agent, didn't disclose her identity in a casual manner, and instead urged him to make her a column item.

"Armitage did not slip me this information as idle chitchat, as he now suggests. He made clear he considered it especially suited for my column," Novak wrote.

Armitage gave a different version of event to CBS News. The former Bush administration deputy secretary of state said he disclosed Plame's CIA status in response to an "offhand question" from Novak.

"I didn't put any big import on it and I just answered and it was the last question we had," Armitage said.