WASHINGTON — The Department of Justice is warning New York Attorney General Letitia James that it “will take all necessary actions to defend” one of the largest hospitals in the Big Apple if she punishes NYU Langone for failing to provide transgender treatments to minors. Deputy Attorney General Todd Blanche in a Thursday letter to James declared that the DOJ “will not sit idly by while you attempt to use your office to force harmful procedures on our most vulnerable population” —if legal