That would be a Secret Service and security nightmare. That could cause an open convention.
Do you think Petraeus is any less of a target? Or Maliki, for that matter? Sure, it is not a walk in the park, and real courage is involved. At the same time, I am not advocating strolling through Mosul where al Qaeda is getting their brains beaten out but is still infested somewhat. Something needs to be done to clear everyone's sinuses a bit - something to cause a paradigm shift.