I don't know. I've got whiplash this morning from catching up on the state of safety measures at airports here and across the globe. What I do know is that starting today, passengers traveling to the U.S. from or through certain countries (Iran, Sudan, Somalia, Afghanistan, Nigeria, Yemen...and more, but not Saudi Arabia, the home of the 9/11 bombers. Why?) will have to undergo extra screening such as pat downs, body scans, bag searches and questioning.