Sin City is on verge of becoming even more sinful. 40 million tourists visit Las Vegas every year for its casinos, restaurants and other enticements. Marijuana could soon be another important reason why people come. It is currently legal to purchase cannabis from licensed stores for people aged 21 and over. However, these products cannot be smoked in public – only in private residences or hotel rooms. But lawmakers are thinking about changing the law to allow consumption in pot lounges – like in Los Angeles.