North Korean officials returned to an inter-Korean liaison office in the country's border city of Kaesong on Monday after their sudden pullout three days earlier, South Korea's Unification Ministry said.The officials were working as usual Monday and "thus the South and North held consultation at the liaison office this morning and will continue to operate the office as usual," the ministry said in a statement."We came to do our shift as usual today," a North Korean staff member was quoted as telling South Korean members at the office.On Friday, North Korean officials who were working at the…READ FULL ARTICLE