There's no end to that mentality.
And if the explosives were "some place else" what's the point of these out in the open signs being some big threat?
One of the favorite Booby Traps used by the VC were Yogi Bear Dolls.
Don't try to inject common sense into this. The authoritarian cheerleaders all got to change their depends over it. I saw the things on TV. they looked exactly like advertising signs/christmas decorations to me. Menino and the other halfwits who run Boston just showed how truly incompetent and stupid they really are. (But of course the majority of Bostonians elected them so what's taht say about the people who live in Boston)
Octoberfest, Munich, 19(80?)...
I and some friends left the festival through a gate, and 15 minutes later, a bomb in a trash container exploded, injuring several people..
If you want to "be safe" then you'll have to clear the streets of everything that could hide something including cars.
Take a look at Iraq / Baghdad.. The biggest bomb threat there is car bombs..
Along with the 2 other terrorist faves, roadside IED's and human bombs, the car bomb is probably one of the hardest to stop / prevent..( Assuming the driver is dedicated..)
In this country, where no one is seriously searching vehicles for bombs, every inch of america is a potentially vulnerable target..
And a married friend of my son's put his trash into one of those trash cans and was stuck with a syringe. He ended up having to go for preventive AIDS treatment and was in mental anguish for months until cleared of any disease.