https://www.bloomberg.com/news/articles/2017-05-11/european-airlines-bracing-for-expansion-of-trump-s-laptop-ban
The FRA airport authority is saying this is real, and they expect it to affect flights to the US out of FRA and other German airports. German news media has said that US officials have been talking about this with the Germans. Time for everyone to call/write their Congressional representatives to try to stop it before it destroys business and tourism.