i planning to fly to washinton D.C to NEPAL via heatrow airport,and abu dhabi. And im taking 4 loptops for my friends. Is there gonna be any problems if i carry them in my hand carry and my luggage. im putting 2 laptops in my luggage and 2 laptops in my hand carry. is there gonna be a problem.Also is there a limit of laptops that i can carry.