Black ghetto can be a loaded term. The knee-jerk thought is of a place with rundown housing, high crime rates, family dissolution, unemployment. Bob's guest, Lance Freeman, sees the ghetto, with its long and troubled history, as a two-sided coin – and not all bad by any means. Freeman is a professor of urban planning at Columbia University’s Graduate School of Architecture, Planning and Preservation, and he’s the author of a new book, “A Haven and a Hell: The Ghetto in Black America.”