An Advocate article on yahoo.com reports that Transportation Secretary Sean Duffy and Homeland Security Secretary Markwayne Mullin gave shifting explanations at a White House briefing after the FAA halted all US departures on a Friday, citing safety, with airspace reopening after 8 p.m. Eastern. The pair blamed a Republican-controlled Congress, praised Donald Trump — Mullin saying "This is what the leadership of President Trump looks like" — while Duffy said routers "got overloaded with data," and Pete Buttigieg questioned in Denver why redundancy failed.