One can tell that Richard Clarke's accusations have the Bush Administration worried. As could be predicted, their cronies have responded by attacking the messenger rather than admitting they've made mistakes in the past.

Judging by how the White House has reacted to the smoke of these charges (the vice president going on Limbaugh's radio show to receive softball questions), it looks like there's plenty of fire here.

Josh Marshall has done some good writing on this, and I encourage people to check out Talking Points Memo as this story develops.