Sooooooooooooo if banning assault weapons is pointless because it only punishes the "good people and the "bad" people will find ways to get it then why is it illegal to get marijuana?
When I was a teenager, I knew many teenagers that drank but didn't smoke pot (because it was illegal). I'm pretty sure the primary concern was that they could get busted for marijuana a month after smoking it. In other words, they couldn't just "sleep it off".
It opens pandora's box. Employers and their employees potentially lose their right to a drug free workplace. Personally, I think what they do on their own time is their business. The only way it becomes an issue is when my safety is at risk because someone I am working with or in the near vicinity of is high.
To me the main reason that alot of people who would smoke that don't is becasue of drug tests by their employeer. Alcohol does not show up in a pee test. Now if pot was legal then who cares if it shows up? As long as you are not high at work, which I do not think will be any higher than those that come to work drunk, then it wont matter.