i can't help thinking though that they knew this was bogus from the get go. in the case of shipping rocket fuel, you've got a bit more control and desire for control over the all of the variables in the equation - ie, you make damn sure that you've got something that can put a decent amount of counter pressure against the walls of the tank so your cargo doesn't explode. you don't have some kid with a bicycle pump pumping it up, squeezing the downtube every now and then until it feels inflated enough. it seems like you would need a large amount of pressure in there to get even a minimal effect.