
South Korean presidential candidate Ahn Cheol-soo of the People's Party attends a televised debate for the upcoming May 9 presidential election in Seoul on May 2, 2017. (Xinhua)

South Korean presidential candidate Ahn Cheol-soo of the People's Party attends a televised debate for the upcoming May 9 presidential election in Seoul on May 2, 2017. (Xinhua)