Sorry for a very slight, but on-topic veer...
Last time I came home from Afghanistan, (as a contractor, I fly into and out of the US via commercial airlines), I was detained by TSA briefly because I caused one of those walk-through, rotating scanners to alarm.
The TSA guy asked if I had anything in my pockets, to which I replied, "No." To the best of my knowledge, this was a correct answer. He then proceeded to wand me down.
The wand beeped by the two penholder pockets on the outside of the left leg, lower cargo pocket. Turned out, at some point or another when I was practicing with a 9mm, an empty casing had fallen into one of the pen-holders. I have no idea how long it had been in there, but those pants had been through the laundry a few times since the last time I'd shot.
So, here we are with this expended, very clean 9mm casing. The TSA guy's eyes go wide, and he starts shouting for a supervisor. (This is not a kid; he was probably around my age, IE 40ish.) I'm saying, "I didn't know that was there; and it's an expended case. What's the big deal?" The TSA guy is extremely agitated...
Luckily, his supervisor had more sense. She came over, saw the empty casing, asked where it had been, and told the first TSA guy that it was no big deal. After he walked off, she laughed, but quietly, so he wouldn't hear.
I thanked her for her help. She said, "Hey, you can't say the equipment doesn't work."
Unfortunately, that doesn't mean the screeners will use any common sense. In my case, the supervisor did.
If it turns out Paulson was an FFDO heading home or to base from a stopover, I'd guess the supervisor in NY didn't use common sense.