Devastating new evidence has emerged that terrorists are preparing another attack on the United States, with air marshals and flight crews reporting a series of dry runs for attacks on aircraft in mid-air.
At least two flights are thought to have been targeted so far by groups of Middle Eastern men who appear to be forming a plan of attack.
On one flight an air marshal reportedly broke into an onboard toilet to find that a mirror had been removed and that a Middle Eastern man was trying to break through a wall to the cockpit.
