Aloni Benson found himself on the frontlines in Ferguson in 2014, calling for change after a police officer killed Michael Brown Jr. But protesting wasn't enough. Two years later, Benson became an officer with the St. Louis County Police Department. St. Louis Public Radio’s Marissanne Lewis-Thompson talks with him and his wife Khalia about his decision to become a cop, raising a black son, and what it’s like being a police officer assigned to protests.