The collapse in American airports was estimated at 50 billion dollars. The flights had to be grounded for four hours because of incredibly old equipment and a failure of the communications and positioning systems, US Transportation Secretary Sean Duffy said at a White House news conference. Modernizing the air traffic control structure will cost $50 billion, Duffy said. The head of the Department of Homeland Security, Markwayne Mullin, added that there is no indication of a cyber attack related to the failure or actions of AI. Welcome to Friday the 13th, Mullin offered his own version. As if someone upset it. so.