Obviously, but if they're adults they're free to make that choice. 140,000 people die of excessive alcohol use in the US every year. This doesn't include violence, drunk driving deaths, or other deaths or crimes committed from alcohol use. I don't drink, but I don't think banning it is the solution, although it wouldn't affect me personally.
Not that I'm aware of. They were rushed to market and the clinical data was supposed to remain hidden for 75 years which certainly seems odd at the least.