Profile of a pot-smoker.

• Position: On the Line

New York

In April, the National Organization for the Reform of Marijuana Laws (NORML) unveiled a new advertising campaign in New York City prominently featuring the city's mayor, Michael Bloomberg, who earlier admitted he once smoked a joint--and enjoyed it. According to NORML, arrests in New York for pot possession have skyrocketed from fewer than 2,000 a year before...