[NobleFree]

"The study included any substance that can impair driving, including illegal drugs, prescription medications, legal non-medicinal drugs and over-the-counter medicines."

Should we ban them all?

Ban the users from driving and carrying weapons? That's already illegal. Ban the substances from use while driving and carrying weapons? That's already done.

No, just ban them - yes or no? (Or squirm?)

[familyop]

You just talked all around part of the final solution without understanding it. ;-D