Mike wrote:
Air marshals cover only a few flights
Federal air marshals protect less than 5 percent of daily U.S.
flights, and the numbers are declining, despite assurances by the
federal government that most planes would be protected, according to
estimates provided by marshals, pilots and a retired airline
executive.
at http://www.washingtontimes.com/natio...1237-9757r.htm

True or not, it wouldn't be a problem if everyone believed that air
marshals were on every flight.