Daniel Landes is trying to figure out how marijuana laws will affect his popular City O' City restaurant in Denver. (David Kelly / For The Times) Back at City O City, Landes, 45, was still debating how best to take on this new challenge. There is a lot of pent-up demand for this kind of thing, he said. But I want to see what hoops I have to jump through first. Aside from expanding his business, Landes sees something bigger here. He believes Colorado should lead the nation in innovative approaches tomarijuana. We started it and we should remain the tip of the spear, he said. Its a competitive

...