A Spanish judge who has targeted alleged war criminals worldwide has gone on trial in Spain on charges of overstepping his authority. Baltasar Garzón is known for taking on international human rights cases, with actions including ordering the arrest of former Chilean dictator Augusto Pinochet in 1998, indicting Osama bin Laden for the 9/11 attacks, and probing the abuse of U.S. prisoners at Guantánamo Bay. But he was suspended as a judge in May 2010 and is now facing three separate trials. On Tuesday, Garzón appeared in court to stand trial on one of the cases, brought by two businessmen accused of bribery who say they were illegally monitored.