A Philadelphia city councilwoman is defending her controversial bill that would force certain businesses to remove bulletproof barriers separating cashiers and customers. Councilwoman Cindy Bass said in a statement her proposed legislation only affects stores applying for a "large establishment" license, or sit-down restaurants where food is served and there is seating and tables for 30 or more people. The goal is to crack down on so-called "stop-and-go" shops, or convenience stores that sell hot food and alcohol, many of which have become nuisances to neighborhoods with intoxicated and unruly customers, according to Bass and other lawmakers.