By Tony Owusu The Department of Transportation doubled the frequency of its random drug tests in 2020, and truckers who smoke weed off-duty are the most likely to face consequences. The cannabis movement has never had as much momentum as it does right now. A full 19 states and the District of Columbia have legalized recreational use of the drug, with the majority of the new states coming online within the last five years (states like Oregon, Washington, Vermont and Alaska were earlier to the party). So far, 38 states have medical cannabis provisions. While four states legalized weed last year,…