Add to that the 73 airport workers in the United States with access to secure areas who only six months ago were identified by officials at the Department of Homeland Security as being in a federal database of possible terrorists, and a troubling picture emerges. (Those 73 workers were in a classified database that the TSA could not normally access.)
The problem of militants working at airports and airlines is not peculiar to the States. In the past decade, British citizens working at Heathrow and at British Airways have conspired with members of al Qaeda.