It’s no secret the U.S. criminal justice system is failing people of color. But the issue is bigger and more horrific than people think. Here, Christina Swarns, a top criminal legal reform expert, discusses wrongful convictions, false confessions, plea deals, the critical role of DNA — and most important, what can be done to improve the system.Christina Swarns is Executive Director of the Innocence Project which gets wrongfully convicted people out of jail.