Um..ok?You wouldn't have kept a job at any company I ever worked for with a hot drug test. And that includes alcohol.
That doesn't mean plenty of other jobs wouldn't have kept a person and will still do so. This isn't the 1920's anymore, we know Reefer Madness was propaganda and the lies told about it have been proven.
I don't smoke at all and have never tried it. I can just recognize how stupid and politically based the law is on this issue.