A top Taiwan security official has claimed that China has internally debated whether to attack Taiwan's Pratas Islands after 2024, the year President Tsai Ing-wen's term ends. National Security Bureau Director-General Chen Ming-tong did not say how he knew that such a move had been debated or why it would not happen during the next few years. China's defence ministry did not immediately respond to a request for comment on Thursday. Self-governed Taiwan's 23 million people live under the constant threat of invasion by authoritarian China , which views the island as its territory and has vowed to one day...