SpaceX is suing the National Labor Relations Board (NLRB) after the agency accused the Elon Musk-owned company of illegally firing employees. In a lawsuit filed in federal court on Thursday, SpaceX claims the NLRB’s actions are unconstitutional.On Wednesday, the NLRB filed a complaint alleging SpaceX illegally fired a group of employees for drafting an open letter that criticized Musk’s behavior. The NLRB also claims SpaceX interrogated employees about their involvement with the letter and encou...