WASHINGTON (Reuters) - The Bush administration is stepping up contacts with the Syrian opposition amid concerns that unrest in Lebanon could cause wider instability, administration officials said on Saturday. Senior U.S. officials involved in Middle East policymaking met in Washington on Thursday with prominent Syrian Americans, including political activists, community leaders, academics and an opposition group. "White House officials were present," said a White House official who confirmed the meeting took place. Representatives from other departments, including State and Defense, took part. Secretary of State Condoleezza Rice said in an interview with the Washington Post published on Saturday that the...