An inspector general investigation conducted after the arrest found that the Air Force had missed or failed to react to a number of signs that Teixeira was improperly using his security clearance. On several occasions members of his unit reported Teixeira for viewing information he didn’t need, but the complaints weren’t properly documented or acted upon even after supervisors had ordered him to stop doing intelligence “deep dives,” according to the investigation report.

“Three individuals in A1C Teixeira’s supervisory chain had information about as many as four separate instances of security incidents and potential insider threat indicators they were required to report,” the inspector general concluded. “Had any of these three members come forward and properly disclosed the information they held at the time of the incidents, the length and depth of the unauthorized disclosures may have been reduced by several months.”