Only on the "CBS This Morning" podcast, journalist Alex Kotlowitz joins CBS News' Reena Ninan to discuss his book, "An American Summer: Love and Death in Chicago." The book shares 14 intimate stories of people living in Chicago neighborhoods plagued by persistent gun violence. Kotlowitz says the commonality between these communities and other crime-ridden American cities is a lack of investment and resources. He explains why empathy will be a key factor in revitalizing these neighborhoods. Plus, he talks about what has and hasn?t changed since he published "There Are No Children Here: The Story of Two Boys Growing Up in the Other America" in 1992.