While on the injustice front..

Some somewhat dated links about possible instances of miscarriage of justice:

Here's a detailed article by Arundhati Roy on the seemingly dubious
death sentence meted out to one Mohammad Afzal for the 2001 attack on the Indian parliament.

Here's a news report about how the charges against some Bulgarian nurses and a Palestinian doctor, of deliberately spreading HIV among their Libyan patients, seem unfounded.