<blockquote>It may not be about security. Three of the airlines that have been targeted for these measures — Emirates, Etihad Airways and Qatar Airways — have long been accused by their U.S. competitors of receiving massive effective subsidies from their governments. These airlines have been quietly worried for months that President Trump was going to retaliate. This may be the retaliation.

These three airlines, as well as the other airlines targeted in the order, are likely to lose a major amount of business from their most lucrative customers — people who travel in business class and first class.</blockquote>
via <a href="https://www.washingtonpost.com/news/monkey-cage/wp/2017/03/21/trump-wont-allow-you-to-use-ipads-or-laptops-on-certain-airlines-heres-the-underlying-story/?utm_term=.71cf29f1ea86">Trump won’t allow you to use iPads or laptops on certain airlines. Here’s why. - The Washington Post</a>.