Via CNN: http://money.cnn.com/2017/03/20/news...ectronics-ban/

"The official told CNN that there is a security concern regarding passengers boarding non-stop flights to the U.S. from some specific countries. The directive is to ensure enhanced security measures at select airports for a limited duration."

Well, it seems like it is just temporary. Still a huge blow when you can't access your laptop on a 16+ hour flight... Not to mention the risks of leaving your laptop/camera/tablet in a checked bag.