When a federal appeals court issued a ruling describing a prosecutor’s misconduct that forced a halt to a drug-trafficking trial in Tucson, the U.S. attorney’s response was to ask the court to erase the prosecutor’s name from the published decision. Bad move. After republishing the name of the errant prosecutor, Jerry Albert, the court pointed a finger at the U.S. attorney’s office and said it was time to start taking responsibility for the misdeeds of its employees. “When a prosecutor steps over the boundaries of proper conduct and into unethical territory, the government has a duty to own up to...