you are the media you consume.
A Cessna with a top-loaded fuel will cause more death in the following panic-rush than on impact. I once witnessed a small plane crash in a crowd and for Belgium 10 casualties in one accident is huge, but if 'terrorists' wonna make a statement they will not use a Cessna or Piper.
Security doesn't come from F-16's. Something else is seriously rotten, when are the USA gonna spend their money (if there's any left) in the right place? The struggle of man against tyranny is the struggle of memory against forgetting.(Kundera)
In terms of the overall security investment in the event I think the aerial stuff is pretty low on the pole and mostly for show.