Tillerson seeks new North Korea plan on Seoul visit

Washington's top diplomat visited the Demilitarised Zone dividing the two Koreas to gaze on the North for himself Friday, a day after he declared 20 years of efforts to denuclearise it had failed.Secretary of State Rex Tillerson is in Asia for his first foray into crisis management, and was to hold talks with South Korea's Acting President Hwang Kyo-Ahn later, after China challenged him to come up with a new way to confront the North Korean nuclear stand-off.Under the glaring eyes of alert North