HONOLULU (AP) — Secretary of State Hillary Rodham Clinton on Thursday vowed to expand U.S. engagement in the Asia-Pacific by building trade ties, reinforcing alliances and continuing to press for democratic reforms in authoritarian nations like China and Vietnam. In a nearly hour-long outdoor speech, Clinton addressed a few hundred invited guests including Hawaii's political leaders, heads of a dozen Pacific island nations and senior U.S. military officials. Clinton was in Hawaii to attend the Asia-Pacific Economic Cooperation summit, calling the event's host state "America's gateway to Asia." "It is becoming increasingly clear that in the 21st century, the world's...