I'll admit that they're being extra careful. I know a Dr at Portsmouth Naval Hospital in Portsmouth, VA. All leave is cancelled on the Fourth and anyone who hasn't got the duty has been told to be available for an emergency all day and night.
That's what he's told me, for what it's worth.
As far as any attacks are concerned, the leftists in the USA had better get used to the fact that there may just not be any good targets to retaliate against, so we may just have to target equivalent population groups in multiple Arab states.