According to Time’s Battleland blog, Major Hassan is refusing to shave his beard as required by military protocol, causing his trial to be delayed. He didn’t have a problem shaving during his service and before he massacred his fellow soldiers.
His defense counsel told the judge the beard is an expression of his religious conviction and should be allowed as such, but Gross has overruled their arguments and ordered Hasan out of the courtroom until he complies with army regulations.