WASHINGTON (AP) - On a trip to China next week to talk about high-stakes issues like terrorism and North Korea, Vice President Dick Cheney will have another task - making a pitch for Westinghouse's U.S. nuclear power technology. At stake could be billions of dollars in business in coming years and thousands of American jobs. The initial installment of four reactors, costing $1.5 billion apiece, would also help narrow the huge U.S. trade deficit with China. * * * "This pitch could not be more poorly times," Henry Sokolski, executive director of the Nonproliferation Policy Education Center, told a hearing...