I am actually very surprised that anyone can walk into a sporting goods store that sells tannerite and walk out with as much as you can afford. I don't buy the stuff because I have had a belly full of fools blowing up crap, including target frames on firing ranges. For those who know, is there any kind of record kept of the purchasers? For a while anyone who bought amonium nitrate fertilizer was under suspicion unless you were a farmer. Not that I am advocating records by the government but it is amazing it is legal to sell an explosive no questions asked. One would think Homeland Security would put an end to that with all the clips on you tube.