"A former brothel manager who helped the FBI bust a national prostitution ring. A retired sheriff who inadvertently helped a money launderer buy land. A young woman who mailed ecstasy tablets for a drug-dealing boyfriend, then worked with investigators to bring him down." All denied clemency by President Obama, along with hundreds more. A ProPublica data review shows he has granted pardons at a lower rate than any other president in our era: about 1 of every 50 individuals whose applications were processed by the Justice Department, compared to 1:3 for Ronald Reagan and 1:8 for Bill Clinton.