Ironic - the very same airlines that were involved in the security breach were the first to bet let operate back to US airspace while other (non US)airlines were not.
I don't think it is trade protection (the US would NEVER do that, would they?)instead it is typical american arrogance that all security threats come from outside the US, as no american would ever do anything to hurt this nation.
Still haven't learnt anything from Oklahoma, have we?