Not totally relevant to this thread, but here's a little snippet from United:
ENHANCED COCKPIT SECURITY
United will have security bars in place on its entire
operating fleet within 10 days.
UNITED'S NEW CARRY-ON BAGGAGE POLICY
As an added security measure, you are now limited to one
reasonably sized (45 linear inches) carry-on item, in
addition to a purse or briefcase, on all United flights.
This restriction applies regardless of your class of
service for domestic and international travel.
Maybe this will ease the "nutter" load?