"Cook County State's Attorney Anita Alvarez speaks at a news conference Monday, April 20, 2015, in Chicago  announcing her office will no longer prosecute most misdemeanor marijuana possession cases, saying what prosecutors are doing now ""is simply not working."" She says the count is spending too much money and time cycling offenders in and out of the system and offenders charged with a low-level marijuana felony will be routed to an alternative prosecution program. (AP Photo/M. Spencer Green)"