Forty years ago, Bob Dylan reacted to the conviction of an innocent man by singing that he couldn't help but feel ashamed "to live in a land where justice is a game." Over the ensuing decades, the criminal-justice system has improved in many significant ways. But shame is still an appropriate response to it, as the Washington Post made clear Saturday in an article that begins with a punch to the gut: "Nearly every examiner in an elite FBI forensic unit gave flawed testimony in almost all trials in which they offered evidence against criminal defendants over more than a two-decade period before 2000," the newspaper reported, adding that "the cases include those of 32 defendants sentenced to death."

The article notes that the admissions from the FBI and Department of Justice "confirm long-suspected problems with subjective, pattern-based forensic techniques—like hair and bite-mark comparisons—that have contributed to wrongful convictions in more than one-quarter of 329 DNA-exoneration cases since 1989."

That link points back to 2012 coverage of problems with FBI forensic analysis, but the existence of shoddy forensics has been so clear for so long in so many different state and local jurisdictions that the following conclusion is difficult to avoid: Neither police agencies nor prosecutors are willing to call for the sorts of reforms that would prevent many innocents from being wrongfully convicted and imprisoned, and neither the Republican nor the Democratic Party will force their hands.