As noted on the Charlotte Observer, Rep. Sue Myrick (R-NC) has called for a

government investigation of all US military chaplains who were approved by Abdurahman Alamoudi.

All military Chaplains are required to have an endorsement by an ecclesiastical body.  Alamoudi formed the American Muslim Armed Forces and Veterans Affairs Council, which provided such an endorsement for Muslim Chaplain candidates.

Alamoudi is now serving 23 years in jail on terrorism related charges, after having been involved financially with Libya and with an assassination plot on Saudi Prince Abdullah.

Though Myrick has been criticized for her statement, it is noteworthy that Rep. Charles Schumer (D-NY) voiced the same concerns over 5 years ago.

Depending on the source, there appear to be approximately a dozen Muslim Chaplains in the military.  Notably, one government web article in 2006 stated that there were more Muslim and Jewish Chaplains than there were Catholic per military observant.