President Lee Myung-bak reshuffled two top posts at South Korea's main intelligence agency Monday in a shake-up that also affected five other vice-ministerial posts, his spokesman said. Nam Joo-hong, a former well-known security scholar who has so far served as ambassador to Canada, was named the first deputy chief of the National Intelligence Service, while Cha Moon-hee, a veteran intelligence official, was tapped as the agency's second deputy chief, presidential spokesman Park Jeong-ha said.