If you research the lifestyle of a great percentage of the Yemenize people, you will see promptly a normal activity is go chew "qat" (cat) every afternoon enmasse. This has an aphetamine type effect on the chewer and it is known to have a variety of disabling diseases, such as heart disease. Some drink alcohol with it. It's perfectly legal in their country. That may be why the first "terrorist" was so unemotional during the flight. As long as these people have easy access to all kinds of drugs and use them repeatedly, how can we expect to bring any...