“This is the age of the plea bargain. Most people adjudicated in the criminal-justice system today waive the right to a trial and the host of protections that go along with one, including the right to appeal. Instead, they plead guilty. The vast majority of felony convictions are now the result of plea bargains—some 94 percent at the state level, and some 97 percent at the federal level. Estimates for misdemeanor convictions run even higher. These are astonishing statistics, and they reveal a stark new truth about the American criminal-justice system: Very few cases go to trial. Supreme Court Justice Anthony Kennedy acknowledged this reality in 2012, writing for the majority in Missouri v. Frye, a case that helped establish the right to competent counsel for defendants who are offered a plea bargain. Quoting a law-review article, Kennedy wrote, ‘ ‘Horse trading [between prosecutor and defense counsel] determines who goes to jail and for how long. That is what plea bargaining is. It is not some adjunct to the criminal justice system; it is the criminal justice system.’ ””