A Libyan rebel fighter readies himself before heading to battle against pro-Qaddafi forces, some 40 kilometers down the road of the northcentral city of Ras Lanuf on March 4, 2011. Forces loyal to Qaddafi have regained control of Zawiyah, near Tripoli, from rebel hands, state television reported. By Roberto Schmidt/AFP/Getty Images.
Colorado is now well into its first year as the first state to legalize recreational marijuana. How's it going? James Hamblin visits Aspen.