The heightened security was definitely noticeable this evening. You're right, we don't know that this plot involved planes only. So many people on commuter rails and subways carry drinks on board, especially in the summer.
OPINION: All mass transportation should have extra-security/heightened alerts.
They said that the loss of life would have been unimaginable. That says to me that there was more to this plot. Maybe blowing up the planes over Shea Stadium or maybe something unrelated to transportation.
It is clear that there are a lot of loose ends. If they had wrapped everything up tightly the threat would be over. It doesn't seem the threat is over.
How was security this morning? Did you go into the city?
I'll be traveling Greyhound next week... just waiting to find one of these...