New York Daily News Pipe bombs and pressure cookers are common explosives for anyone wishing to cause lots of damage A pipe bomb is a very common type of IED (improvised explosive device) and a pressure-cooker bomb is just a larger version. Usually it’s a closed galvanized steel or PVC pipe, and has three primary components: the pipe itself, which is the housing of the IED; the explosive filler, and something to initiate it — […]