i guess what happened was in the 30's when they started some of the big futures markets renteria products and eggs as well as wheat and in the 30's with all of these new deal dairy support program suddenly the chicago-- lost a bunch of business so they had to come up with new heckert culture products so they said we will do on in future training-- at that point the markets were become this was the chicago mercantile chain, small dominated by a small number of traders so the couple of the traders decided to corner the onion market, so you have this incredible onion bubble and then they collapse. all these onion farmers who should have just taken advantage of the bubble until they could sell and say okay i will deliver my onions at that insane price. they all started joining the market and buying futures themselves so all of these onion farmers would-- so they got congress to ban it. if you could just look at onion prices before and after this market, then you could learn something, so initially when the legislation first came in, they thought let's look back a new markets before and after