Originally Posted by
law dawg
I see and understand your points, but what is blowing up, exactly, and where? If it's, say, radioactive and over a city, we could be back to national security issue again.
Yes, although if we've got terrorists carrying dirty bomb materials aboard planes, we've got more to worry about than the water carnival, too.
(And at that point, a dirty bomb on the ground becomes a national security threat as well; set one off in lower Manhattan or on the National Mall and you've achieved the same goals, largely--and perhaps more effectively so--than setting it off in the air.)