U.S. arms sales to Taiwan hurt China's national security, its foreign minister said, escalating the rhetoric in a dispute threatening to deepen rifts between the world's biggest and third-biggest economies. Foreign Minister Yang Jiechi was the latest and most senior official to denounce the arms sale plan Washington announced on Friday. The Obama administration has defended the package worth about $6.4 billion as necessary to boost regional security. Yang, traveling in Cyprus, said China and the United States had held many discussions about the arms sales, but Washington had ignored Beijing's demand they be stopped, the official Xinhua news agency reported on Sunday. The United States should "truly respect China's core interests and major concerns, and immediately rescind the mistaken decision ... in order to avoid damaging broader China-U.S. relations," Yang said. He said the U.S. move had "damaged China's national security and great task of reunification (with Taiwan)." http://www.reuters.com/article/idUSTRE60T07W20100131 China should sell the dollar on monday as a warning to Washington.