Jack Texeira was a ticking time bomb He appears to be one of those heavily armed, racist, incels with a propensity for grandiosity and violence. How in the hell did he get that top security clearance? Jack Teixeira, the Massachusetts Air National Guardsman accused of posting classified documents online, repeatedly tried to obstruct federal investigators and has a “troubling” history of making racist and violent remarks, Justice Department lawyers said in a court filing late Wednesday. In an 18-page memo, released before a detention hearing scheduled for Thursday in a Massachusetts federal court, the department’s lawyers argued that Airman Teixeira needed to be detained indefinitely because he posed a “serious flight risk” and might still have information that would be of “tremendous value to hostile nation states.” Airman Teixeira tapped into vast reservoirs of sensitive information, an amount that “far exceeds what has been publicly disclosed” so far, they wrote. Prosecutors pointedly questioned Airman Teixeira’s overall state of mind, disclosing that he was suspended from high school in 2018 for alarming comments about the use of Molotov cocktails and other weapons, and trawled the internet for information about mass shootings. He engaged in “regular discussions about violence and murder” on the same social media platform, Discord, that he used to post classified information, the filing said, and he surrounded his bed at his parents’ house with firearms and tactical gear. Airman Teixeira was also prone to making “racial threats,” prosecutors said. This behavior — so disturbing it was flagged by…