I read a different version of that, where Armitage actually told the FBI and Justice Dept investigators that he had met with Novak and had passed along the info at that meeting.
Again, all he had to do was take it public and it would have effectively taken the wind out of the sails on most of the tail chasing. Some of the investigation would have continued as it should have.
The ironic thing about all of this, is that Armitage had huge misgivings about the Admin's tunnelled vision rush to war.
And speaking about fishing expeditions...I guess Bush, et al, should foot the 300+ billion for Iraq since the assertions for going to war have been shown to be baseless and worthless.