1976 2001 20thcentury aeronautics aircraftaccidentvictims airpilots airports biography casestudies cathy commercial cooper crimesaboardaircraft criminals entebbeairportraid etc fiction firearms france freight heroes hijackingofairplanes history holder juvenileliterature kerkow laws legalstatus pakistan passengertraffic prevention roger sabotage securitymeasures september11terroristattacks spacecolonies spaceflight spaceships terrorism unitedairlinesflight93hijackingincident unitedstates useincrimeprevention victimsofterrorism