Between 1999 and 2015, some 983 people were convicted for stealing from post offices in the U.K. Some people ended up in jail. At least four died by suicide. Turns out, it was a computer glitch. WSJ’s Max Colchester explains how one TV series helped bring their stories to light— and to justice. Further Reading: - Nearly a Thousand People Were Convicted of Stealing Over Decades. It Was a Computer Glitch.  Learn more about your ad choices. Visit megaphone.fm/adchoices