The number of women in U.S. prisons has increased more than 700 percent since 1980. And for nearly all of that time, Oklahoma has led the nation in locking up women. Reveal Senior Editor Ziva Branstetter teams up with Allison Herrera and The Frontier, an Oklahoma-based investigative news website, to find out why.
Hear more from Reveal's recent episode on prisons at revealnews.org.
