IT is difficult to shed the impression that the hunt for Munir’s killers has been nothing less than half-hearted. Three years after the human rights activist was murdered, the investigation seems to have gone around in circles like a crab in a rock pool. At times, there seems to be a breakthrough: new evidence, new witnesses, but the upshot is always an anticlimax—or even a bad joke.

The latest “breakthrough” came two weeks ago from Nati