So a plane was diverted to Philadelphia on a New York to Kentucky flight because of concerns of the straps and boxes that a Jewish Teen was wearing as he prayed:

Jewish teen’s prayers spark airliner scare
Flight is diverted after religious item is mistaken for a bomb, police say

updated 9:18 a.m. ET, Fri., Jan. 22, 2010

PHILADELPHIA – A Jewish teenager trying to pray on a New York-to-Kentucky flight caused a scare Thursday when he pulled out a set of small boxes containing holy scrolls, leading the captain to divert the flight to Philadelphia, where the commuter plane was greeted by police, bomb-sniffing dogs and federal agents.

The 17-year-old on US Airways Express Flight 3079 was using tefillin, a set of small boxes containing biblical passages that are attached to leather straps, Philadelphia police Lt. Frank Vanore said.

You know, the guy wearing Tefillin is among the people least likely to be an Islamic bomber.