Homework help? no its not like i didnt try!(legalization of marijuana essay)

I wish we were just given a regular essay assignment to do because I do have all the data to prove my point on why marijuana should be legalized but since its a synthesis essay, I'm not allowed to input my own ideas into my work.

So basically I would be needing 3 articles from well respected sources like universities as well as 2 articles taken from books or newspaper clippings.

Problem is, I want to talk about it as a whole, from why it is illegal (william randolph hearst and his buddies/napoleon being an asshole,etc), to what is keeping it illegal (tobacco companies,missunderstandings,etc) to why it should be legalized (hemp,pain relief, cancer cure etc etc)

So as a conclusion, I dont see too many well respected sources who tend to write on multiple subjects. Its mostly very specific, for example that article stating that it might help diabetics did not talk about the cancer research or the aids patients or anything else and since I have a limited amount of articles I can submit this becomes somewhat of a problem.

So anyone know any credible source with articles talking about a few topics at a time?