My suspicion is that many of the Airports/Airlines took increased
security as an opportunity to cut back on personnel.
With travelers willing to show up 2 or even 3 hours early for flights
Check-ins and Security no longer had to be manned to account for
cyclical demand- but could be undermanned for constant delay.
Much as I am rarely in favor of Federalization this may be the exception
that proves the rule.

I've always felt that a $ .99 extra fine bic is as dangerous as any ice
pick.

DD