North Korean spies infiltrated the International Taekwondo Federation and used its members in an attempt to assassinate South Korean President Chun Doo-hwan, according to Taekwondo master and son of the founder of the ITF, Choi Jung-hwa.

Choi said after his father's death in 2002, North Korean IOC member Chang Ung took control of the ITF and use it for political purposes.

"After taking control of the ITF, the North trained spies and sent them overseas, disguising them as taekwondo masters," Choi said.

Not only that, ITF members, including himself, were ordered to assassinate South Korean President Chun Doo-hwan during his visit to Canada in 1982.

The Canadian police somehow got wind of Choi's plot to kill the South Korean president and he fled to North Korea.

His reason for coming back to South Korea is to settle the feud of the previous generation, he said

Read more over at the Korea Times.