[dfwgator]

Sounds like an inside job with somebody on the security crew...checking for bombs in trash cans is the FIRST thing you would check for.

[Sacajaweau]

Not an inside job but perhaps someone who was hanging around asking questions.

So many folks from out of Town makes it tough....I'd be talking to the locals, concentrating in a small circle.

We need more info on the bombs in order to find out any trail to place them.