Mark Kleiman counters Greg Campbell's comparison:

Campbell notices the fact that legalization would end the problem only to dismiss it with the claim that "legalization isn’t likely to happen anytime soon." But that’s not true at the state level: with three propositions on the ballot this fall (Colorado, Oregon, and Washington) it’s probably better than even money that at least one will pass, and – unless that state, or the federal government, stepped in with massive enforcement – a single state that legalized outside the medical context could easily supply the entire continent with pot, more or less wiping out the Mexican cannabis trade. Maybe that’s not a sufficient argument for legalization, but it’s substantial one.

Dish reader thoughts here.