To make a case, a supervision seems to be relying on several supposed advantages of stowing laptops in a luggage hold. First, checked bags bear additional screening for a participation of explosives. Second, it is probable that luggage in a load area could yield some insulation from an explosion. Finally, bombs placed in a load area need a sophisticated timing device, distinct easier explosives that could be set off manually.
Article source: http://www.huffingtonpost.com/entry/why-banning-laptops-from-airplane-cabins-doesnt-make_us_591c3485e4b021dd5a829023?section=us_travel