” The added security, the swat teams in the hotel lobbies”
Don’t forget North Korea has issued a boatload of threats. Reason enough for added security. Planning to mitigate unpleasant events does not prove foreknowledge of said event.
For instance the Marathon typically has 50 physicians at the finish line. Ah-Ha! They KNEW there would be casualties! Or, the MDs volunteer to help the folks who just ran 26 miles.
As for shutting everything down, yes they were frightened of more action. Who wouldn’t be? The bad guys are still out there.
If you remember right after 9/11 they didn't tell everybody to go home and stay indoors, stay in your hotel room, don't go where there are crowds. They said just the opposite. Don't let terrorism cause you to change the way you live.
I'm telling you they had information and believed there were going to be more than 2 bombs.