Did you read the news about the US government even refused to allow a US citizen boarding a flight from Tunisia back to the USA because he was helping a medical team in Libya? His name was some how ended up on the US "no fly list". Now the only choice he has is to return to the USA by boat. I can't believe the US is getting so paranoid even at its own citizen.
On the other hand, weren't most of those terrorists setting off bombs at the subway (the Tube) in London, born and raised in the UK - home grown?