Dave DaviesDave Davies is a guest host for NPR's Fresh Air with Terry Gross.
Dr. Homer Venters, the former head of New York City's correctional health services, says that inmates held in solitary confinement cells, such as the Rikers Island cell shown above, have a higher risk of committing self-harm.
Given supportive, nurturing conditions, highly reactive "orchid" children can thrive when tackling challenges, pediatrician and author Thomas Boyce says, especially if they have the comfort of a regular routine.
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"There's just so much beneath the streets of New York City that people walking around on the surface don't ever think about," journalist Will Hunt says. His new book is Underground.