Reuters - Olympic organizers vowed to tighten security in central Beijing on Sunday after a U.S. tourist was killed in a stabbing attack.

Reuters - Zimbabwean President Robert Mugabe was locked in long talks with opposition leaders on Sunday after signs they were about to reach a power-sharing deal to end a post-election political crisis.

Reuters - Suspected Muslim separatists and suicide bombers launched a dozen attacks in west China on Sunday, killing 11 people in the blasts and a subsequent shootout with police in renewed violence two days into the Olympics.

Reuters - The United States must provide a "very clear timeline" to withdraw its troops from Iraq as part of an agreement allowing them to stay beyond this year, Iraqi Foreign Minister Hoshiyar Zebari said on Sunday.

Reuters - U.S. Treasury Secretary Henry Paulson said in an interview aired on Sunday he had no interest in staying in his post beyond January when a new administration takes office.

Reuters - The millionaire stars of the U.S. basketball team swept past hosts China in the showcase match-up of the Olympics, watched by tens of millions on Chinese television and cheered on by U.S. President George W. Bush.

Reuters - Russian troops took the capital of the separatist Georgian region of South Ossetia on Sunday after a three-day battle as Georgian forces retreated and the Tbilisi government offered a ceasefire and talks.

AP - Michael Phelps left Ryan Lochte in his wake.

AP - President Bush sought to contain the explosive conflict in Georgia on Sunday as the White House warned Russia that relations with the U.S. were in jeopardy.

AP - One of the largest and most photographed arches in Arches National Park has collapsed.

AP - Iraq and China are set to revive a $1.2 billion oil deal that was canceled after the 2003 U.S.-led invasion, the Iraq's oil ministry said Sunday.

AP - A reef of gold buried beneath this vast, parched grassland arcs across some of the world's poorest countries. Where the ore is rich, industrial mines carve it out. Where it's not, the poor sift the earth.