Screened and vetted before training.
Via WISTV:
Two Afghan national flight team members, maintainers, or aircraft mechanics, who have been training to fly with the 81st Fighter Squadron at Moody Air Force Base, are missing.
Multiple law enforcement agencies received an alert from Moody Officials. They referred all initial calls to the Air Force Press Desk at the Pentagon. Phone calls to that office have not yet been returned.
Moody Air Force Base later issued a release by email:
Two male Afghan air force students did not report for duty yesterday at their regular maintenance training at Moody AFB in Valdosta, Georgia. Both are assigned to the 81st Fighter Squadron. They have been at Moody since. February 2015 and were screened prior to their arrival in the United States more than a year ago. The students have trained alongside American counterparts for the entirety of 2015 and do not pose any apparent threat. There is a well-coordinated process among federal agencies to locate the individuals as quickly as possible and return them accordingly to the proper authorities to manage their present situation.
The search for those missing comes almost 11 months after a special ceremony was held to officially reactivate the 81st Fighter Squadron out of Columbus Air Force Base in Columbus, Mississippi, charged with training the Afghan airmen. The base began receiving the new airmen in February.