Well, it would appear that the information that prompted the move to "high" alert was a lie.
Obviously, I'm glad that this is the case. I don't want to see another terrorist attack on North American soil (or anywhere, really, but that's a harder job), and I worry constantly about the reaction that such an attack would cause. It's better for everyone, especially North American Arabs and Muslims, that such an attack not take place. I don't want to think about what'd happen to them were there another attack, especially with the all-out invocation of a war on Islam that is already being advocated by some after just one attack.