Pearl overstated it a bit. Every call, fax, etc. is saved by the gummint. For how long, no one knows. But each one is analyzed for hot words like bomb, president, and a whole bunch of other words.
My posting those two words together means this message will be read by a G-Man whose job it is to evaluate such messages (everybody wave to the nice G-Man) and determine if some terror plot is being planned. If it looks like it is, further action is taken. If not, he moves on to the next. Messages without the words on the list are likely never read unless the individual is already a suspect. This has been common knowledge for--what?--ten years maybe.
I don't doubt that you're on their favorites list.