Marijuana should be totally legal, the reason it is banned in the USA is because Industrials and Dupont closed down the Hemp Industry because it was gonna replace their holdings.
There is much to gain from hemp in general (including Marijuana), you can a wide variety of things with it and can be applied as medicine.
Many famous people have used it and i think Carl Sagan championed it the best by writing some very eloquent essays on it,
Click here for Essays.
I think i've said enough, i'm not sure on hard-drugs since they really destroy your body and mind unlike pot.
Also, gotta drop some Joe Rogan podcast on your asses.
[youtube]http://www.youtube.com/watch?v=UEmWUjXyQ38[/youtube]
PEACE