The story is told from the inner sanctum of the state security apparatus that fought an urban terror campaign in South Africa between 1998 and 2002.

Sanchez's story is profiled in the books "MS-13 ... the executive director of Homies Unidos and is a violence-prevention worker and expert on gang culture. He speaks with Business Insider about ...

McPhatter speaks with Business Insider about New York City gang ... violence prevention and intervention. He is the author of "Two Way Mirror: Trife Gangsta vs Shanduke McPhatter." Find McPhatter ...