It’s not unreasonable to raise the possibility that someone will try, but I do think it’s over the line to bet on it.

And key word is “try”… I am sure the MIB (Secret Service) have had their eye on this possibility all along, and have only kicked into high gear since some of the recent hijinks of McCain’s less sane supporters.

Looking at pics of Obama’s campaign stops, there are always 4 or 5 MIB close to hand, watching the crowd. Having been personally at events with MIB “protectees” (what they call Senators, the President, etc) I can vouch that in such circumstances the MIB are everywhere– on the rooftops even. At one event I was at, there were MIB stationed alongside the escalators and they visually scanned the faces of everyone going up them (including me)… apparently they have leads on certain people and they watch for them to show up.

I think it’s pretty likely, alas, that some nutjob will try (may already have)… but they have a stiff, stiff row to hoe before they can actually get *to* Obama. I think many lessons have been learned since Dallas.