Recreational marijuana has been legal in Colorado for years. What can Illinois learn before its residents start firing up?
(Chicago Tribune Religion News)

`Lasers are on,` the tour guide announces. `You can blaze.` As beams of light shoot across the inside of the minibus, passengers take their cue to pull out marijuana joints and pipes and light up. A haze of smoke fills the bus, and a dozen smokers generously trade hits with each other. Minutes...