When an Israeli re-enters Israel, he has two possibilities:

1. He can stand on line for passport control.

2. If he is pre-registered and has a special card, he can swipe it in a machine, have his hand checked against the records, and re-enter. (This is much quicker.)

If he uses option # 1, he is handed a piece of paper by the passport control officer. He then walks about 10 meters and gives it back to a second passport control officer. I have never figured out the logic behind that.

If he uses option # 2, the machine gives him a piece of paper, he walks the same 10 meters, but this time is allowed to keep the piece of paper. I have never figured out what I am supposed to do with it.