A member of the Korean Confederation of Trade Unions sprays paints to write a message denouncing South Korean President Park Geun-hye on police buses after a May Day rally in Seoul, South Korea, Friday, May 1, 2015. Thousands of South Koreans marched in Seoul on Friday for a third week to protest government labor policies and the handling of a ferry disaster that killed more than 300 people a year ago. (AP Photo/Ahn Young-joon)