In the last decade or two blinded lineups -- where the police officer with the witness doesn't know who is the suspect -- became the standard in a fair number o

In the last decade or two blinded lineups -- where the police officer with the witness doesn't know who is the suspect -- became the standard in a fair number of U.S. states. You can take this pessimistically: wtf, it took this long to introduce some basic epistemic hygiene? But it also shows progress does happen. "No practical benefit for anyone" is just giving up.