TOKYO (Reuters) – Japan will postpone a deadline for resolving a row over relocating a U.S. base by up to half a year to November, abandoning Prime Minister Yukio Hatoyama's original end-May target, the daily Sankei Shimbun said Saturday. The decision will be conveyed to the U.S. side as early as next week, the paper said, while Kyodo news agency reported diplomatic sources saying U.S. Secretary of State Hillary Clinton would visit Japan on May 21 to discuss the base issue. "In order to get the understanding of as many people as possible, we will keep seeking their cooperation even...