Communist party-ruled mainland China is outspoken about its desire to take control of the democratically elected government of Taiwan, a key partner of the United States and a technological powerhouse of the Indo-Pacific. National Security Editor Guy Taylor sits down with Amb. Alexander Tah-Ray Yui, Taiwan’s top diplomat in the United States, for a wide-ranging discussion about Beijing’s campaign to block Taipei from the United Nations, the threat of a Chinese military invasion and the status of U.S. relations with the island democracy.