Legalization would help with the greenhouse affect too, think about all the trees being cut down combined with taking large amouts of hemp and marijuana plants out of the environment so if it was legalized and they couldent tax it, it would still be beneficial for the USA to let people grow if we started to use more AMERICAN MADE hemp rather than cotton it would cut way down on all the nasty pesticides needed for cotton so there is no need to let the Gov. tax it. It pays for itself in more ways than I just stated.