The Department of Homeland Security announced an unprecedented new restriction on travelers from 10 airports in eight Muslim-majority countries on Tuesday.

The DHS restriction states “that all personal electronic devices larger than a cell phone or smart phone be placed in checked baggage at 10 airports where flights are departing for the United States.”

It’s a Muslim laptop ban.

The 10 airports are in Jordan, Egypt, Turkey, Saudi Arabia, Kuwait, Morocco, Qatar, and the United Arab Emirates.

American-based airlines do not fly directly to the United States from these airports, so these restrictions will not apply to them. The impact of this move will instead fall on nine airlines, including Gulf-based carriers that U.S. airlines have been asking President Trump to punish since the day after his election.

The U.S. carriers have long complained that Gulf carriers such as Emirates, Etihad Airways, and Qatar Airways are unfairly subsidized by their national governments.

Executives at Delta Airlines, United Airlines, and American Airlines met with Trump in early February. The day before the meeting, a group representing these American airlines, called the Partnership for Open & Fair Skies, distributed a slick video using Trump’s own words to argue against the subsidies.

With this new travel impediment, Trump may be throwing these executives a bone. The new restrictions appear to be targeting airports that serve as flight “hubs” for these airlines — such as Dubai International, which is the hub of Emirates. Airlines use these hub airports to transfer passengers between flights, delivering significant savings.

California Democratic Rep. Adam Schiff, who is the ranking member of the House Intelligence Committee, quickly rose to the defense of Trump’s DHS on Tuesday, calling the restrictions both “necessary and proportional to the threat”: