Medical Marijuana and Firearms Purchases (3)

A year ago I speculated what would happen if the authorities went after gun buyers who marked "No" to the question, "Are you an an unlawful user of, or addicted to, marijuana [and list of other drugs]?
on the federal form 4473, completed by every purchaser  were also on their states' medical marijuana registries.

Shortly afterward, I noted that the federal Department of Justice was still taking a hard line, despite the number of states with legal medical marijuana.

Last month it has happened — or almost happened — or will yet happen — in Honolulu. As Tom Knighton wrote at Bearing Arms,

Hawaii is one of the handful of states that maintain a gun registry. They know every lawfully held firearm in the state and who has it. As a result, it was easy for law enforcement to compare the two databases and figure out who owned guns and was getting medical marijuana.

Now, he continues, they are "reviewing the policy" after getting a lot of pushback, not just from gun owners/buyers but from the larger pool of cannabis users too.

The problem remains, as the Honolulu police are happy to state, "Federal law prohibits firearm possession for unlawful users of controlled substances. Pot is classified as a controlled substance under federal law."  So just saying, "I'm a medical user, I'm not an addict fercrissakes" would go nowhere in a federal court.

So when do we get national legalization?