Clearingapath to the market soon will be the Winbot 7, a compact machine billed by manufacturer Ecovacs Robotics as the first full-service window-washing robot.
In most countries the police would respond to such cases by clearingapath to the door, arresting protesters if they resisted violently, but allowing the protest to go ahead.
South Korean and U.S. officials say the armistice can't legally be canceled by any one party to it, but Seoul is concerned that the North is clearingapath for an attack or other provocation.