But that didn’t stop the Pentagon from granting a top-secret security clearance to Jack Teixeira, who prosecutors say had an arsenal of weapons at home and a history of violent online rhetoric. And the Air Force’s Inspector General investigation is specifically examining the Pentagon’s vetting process and whether any procedures were violated or ignored, Pentagon officials said. Gen. Patrick Ryder told reporters on Thursday that when vetting someone for a security clearance, the adjudicator examines “a sufficient period” in someone’s life to determine if they are eligible. That program – largely run by the Defense Counterintelligence and Security Agency (DCSA) – aims to continuously vet security clearance holders for warning signs than periodically investigate them every five to 10 years. “Social media is a new world that the government really hasn’t gotten ahold of yet,” said Brad Moss, a lawyer who specializes in national security and security clearance law.

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