North Korea has much to do before the US can remove it from its terrorism blacklist, US President George W. Bush said Tuesday night. At a news conference with South Korean President Lee Myung-bak, Bush said he remains concerned about North Korea's human rights record and also about its ballistic missile and nuclear programs. He said neither leader really knew whether North Korea intended to give up its nuclear weapons program. Bush has branded North Korea along with Iran and Saddam Hussein's Iraq as part of an "axis of evil." He said it was his hope that the axis of evil list could be put in the past.