HONG KONG — Former U.S. vice presidential nominee Sarah Palin, once questioned about her lack of foreign policy experience, will make her first trip to Asia in September. The former Alaska governor will visit Hong Kong to address the CLSA Investors Forum, a well-known annual conference of global investment managers, the host announced Monday. Bill Clinton, Al Gore and Alan Greenspan have spoken at the event, hosted by brokerage and investment group CLSA Asia-Pacific Markets. "Our keynote speakers are notable luminaries who often address topics that go beyond traditional finance such as geopolitics," company spokeswoman Simone Wheeler said in a...