Sure, Jon Stewart spent time raking business net CNBC over the coals a few weeks ago — a well-deserved drubbing if there ever was one. However, that's no reason not to highlight an example of network doing something right. What follows is a killer Power Lunch segment from last week that debates whether or not marijuana should be regulated instead of outlawed. Normally, these news channel weed debates are one-sided affairs meant to scare the pants off parents and reinforce the status quo. Not this one. Here, the debate is framed in economic terms (this is a business network, after all), and the consensus may surprise you. Video after the page break …