President Bush is willing to impose his version of airport security by executive order if Congress doesn't pass a bill that allows the federal government to contract with private companies to provide airport and baggage security, a key House GOP ally of the Bush White House told CNN.

CNN: Recovery: Aviation security debate continues

"I am announcing today a new approach to hand baggage security that will be introduced progressively as airports are ready to handle the extra capacity, so we can pass the benefits on to the passenger as quickly as possible, " she said.

BBC: Crowds at Heathrow Airport