Some Islamic groups are supporting a ruling that Muslims will be forbidden from passing through full body scanners based on a religious objection. The ruling is based on Islamic teachings that emphasize modesty, and viewing individuals as "nude" through body scanners is a clear violation of that belief. Full body scans show intense detail of the individual being scanned, to the extent it is the near equivalent of viewing them nude.
It appears a full body patdown is an option for passengers who refuse the full body scan, and some Muslim groups are encouraging Muslims to take that option. In response to the issue, the Transportation Security Administration stated that full body scans are optional, and passengers who refuse “will receive equivalent screening that may include a physical pat-down, hand-wanding, and other technologies. Physical pat-downs are performed by Transportation Security Officers of the same sex as the passenger in a private screening area, if the passenger requests.”
Airport body scanners violate Islamic law, Muslims say | Detroit Free Press