Marijuana needs to be completely legalized nationwide, and all prisoners incarcerated for marijuana offenses should be immediately released and their records expunged. Marijuana is not dangerous. Caffeine is more dangerous than marijuana. The therapeutic index of alcohol is 10:1; if three beers in an hour is enough to get you drunk, then 30 beers in an hour is enough to die of alcohol poisoning.
On the other hand, if you wanted to smoke enough marijuana to die of a THC overdose, good luck with that. The therapeutic index of tetrahydrocannabinol is 10,000 to 1. If a single half-gram joint is enough to get you high, then to die of a THC overdose, you would have to sit in an unventilated room and set 11 pounds of kush on fire all at once. The smoke inhalation would kill you long before the THC does.