sara hoy exposed the cost of a gunshot - tonight, the price chicago pays with every bull e >>> good evening, thank you for joining us. the grand experiment that colorado began, a year ago, is seeing plenty of rocky mountain high, and reasons for concern. "america tonight" began a focus on colorado, after it legalized pot for recreational use since january. over the past year new businesses celebrated unexpected sales. colorado's new gold rush has some warning of problems no one anticipated, especially important to other states now considering following its lead. lori jane gliha begins with colorado's first year on pot. >> reporter: thousands of pieces of candy, chocolates, mint, peppermint bars are being crafted. >> we have half a million backlog before producing 500 units a day, we can produce 1,000 an hour. 2014 is a point of inflection. it's been a momentous year, history has been made. >> reporter: a year of recreational marijuana sales transformed this business from a tiny operation in a small denver warehouse to a production powerhouse that tripled in size with triple the staff. his s

sara hoy reports. >> reporter: cory watkins scanner comes to life. he goes to a traffic stop.h an ak-47 over his shoulder he begins his work. >> looks like they are arresting someone. he may seem an unlikely ally. but for more than a year a gun-toting texan and a band of enthusiasts have taken to the streets. >> more than ever we need police accountability, and people out there recording. it's not just our area but over the country. >> he and his team warn motorists of dui checkpoints and cameras. they post encounters with police. >> i'll place you under arrest for impeding my investigation. >> i'm impeding your investigation. >> yes, you are. >> watkins openly carries his ak-47. in texas it's legal for him to carry a gun like his assault rifle. >> why cop watch with that weapon. >> why not. it's my right to do so. i want to exert my freedoms in the powerful way, in the biggest way possible. >> exercising his freedoms caused frictions with the local police. christopher cook says coreying weapons is not a problem. it's -- carrying weapons is not the problem. it's action where t