Credit: A traveler walks past a TSA Pre-check application center at Terminal C of the LaGuardia Airport in this Jan. 27, 2014,
Credit. John Moore

The Trump administration said Wednesday it will ban large electronics on flights to the United States altogether — on board, and in checked bags — unless airlines comply with new directives to ramp up passenger and baggage screening.

The mandate, announced by Homeland Security Secretary John Kelly, would affect 280 last-point-of-departure airports and as many as 2,000 daily international flights to the United States and potentially throw a huge wrench into business travelers’ plans.

The restrictions DHS discussed Wednesday would go further than a March order banning passengers from carrying any device larger than a smartphone on U.S.-bound flights from 10 airports, mostly in the Middle East — both in the scope of where they could apply and in expanding the ban to checked bags. Effectively, electronics larger than a smartphone simply could not be carried inside a plane in any fashion unless carriers adopt […]