Taiwan is seeking to buy as many as 66 advanced Lockheed Martin Corp. F-16 fighter aircraft over a period of five to 10 years to guard its skies from any Chinese assault, a U.S. official familiar with the matter said Thursday. Such a deal could be worth as much as $5.5 billion based on prices quoted by the Pentagon last month for up to 36 such F-16s and related gear sought by Pakistan. Full Story