I have one quick example.
We have about 1,700 people in this country who are authorized to use marijuana for medical purposes. There are about 200,000 or 300,000 more who haven't been able to navigate the federal government's system. These people will test positive for the presence of marijuana in their system days, weeks, or potentially a month after their last use of cannabis. What's going to happen is if they're pulled over and they end up doing the drug test, they can be convicted while never having been impaired. They didn't drive while impaired. That's a very serious problem when you have critically and chronically ill people who might be subject to deprivation of their liberty on the basis of quasi-scientific evidence—and I say “quasi-scientific” because it's not infallible.