A Signal?

I don't think so -- if it had been, Cheney would have been in more danger. But maybe it's a sign that the surge isn't working and the wheels are starting to come off. It's not good, that's for sure. Nineteen people died and eleven more were wounded, after all. Not all of them get to be Vice-President, but they all have families and people who love them. And they're all in danger of once again living under Taliban rule.