The UN lifted the immunity from the four Jordanian police officers involved in yesterdays shooting. This will allow the four to be questioned about what happened. Stories that the Jordanians and Americans had been arguing over Iraqi before the shooting have been universally denied. However, politics has caused Jordanian security personnel to do this sort of thing before. There have been several cases of Jordanian police on the Israeli border opening fire on Israelis, or Western tourists passing through.