Before boarding a plane, travelers go through a security check point where all carry-on items are scanned. There are restrictions to only bringing liquids with less than 3 oz., aka the 3-1-1 Rule. If contents go over that weight, security asks them to exit the line and pack it in their check-in luggage or dispose of the contents. If the liquid is flammable or a mechanism for a bomb, how secure is it to force people to repack it?