A new study says federal and state governments are missing out on $28 billion by not legalizing marijuana.
The study comes from the Tax Foundation, an independent think tank. Experts say most of that revenue would be from tax on pot.
Critics worry legalizing marijuana could lead to more drug abuse and addiction. But experts at the Tax Foundation say people who abuse marijuana do so regardless of whether or not it's legal.
According to the National Survey on Drug Use and Health, about 12% of marijuana users were considered "abusers" of the drug.