Jack Teixeira, a 21-year-old Massachusetts Air National Guardsman, was arrested Friday in connection with the leak of classified documents. An FBI affidavit revealed that Teixeira had searched for the word “leak” on his government computer on the same day the first media reports about the leak were published. Teixeira appeared in court Friday, where he was charged with possessing classified documents and national defense materials. It remains unclear what consequences he may face if convicted.