It is unacceptable for this sort of thing to take any time whatever. The government should not be able to hide behind laws that prevent it from being sued for millions of dollars by any innocent people adversely affected. Of course, we must also protect the airways from terrorism, and if an innocent person is inconvenienced as a genuinely unavoidable consequence of this... then the millions of dollars can come from the taxpayers of Sa'udi Arabia, where the 9/11 hijackers came from.