First the US, now the UK. A US ban on carry-on consumer electronics larger than a cellphone, such as laptops, tablets, and e-readers, has been expanded to include UK flights. The ban covers flights to and from airports in several Muslim-majority countries.
http://www.notebookcheck.net/Laptops-and-tablets-are-banned-by-the-US-and-UK-on-various-flights.207630.0.html