Top 3 brainstorming ideas

I'm interested in
1.) CCC
2.) Prohibition
3.) Al Capone

I'm interested in the CCC because it helped a lot of young men in the 1930's and 1940's who were unemployed. I would like to know more in depth about it. I would say my ultimate top choice is Prohibition, though. I want to know and understand their logic behind banning alcohol. Also, at this point in time, a lot of crime went up and people started their own underground alcohol making businesses. Still today, people continue these routines.