University students carry a placard during an anti-war and anti-U.S. rally demanding negotiations between the U.S. government and the Taliban for the safe return of the South Korean hostages in front of the U.S. embassy in Seoul August 1, 2007. Relatives of South Koreans kidnapped in Afghanistan and the nation's lawmakers pleaded with Washington on Wednesday to intervene and help secure the release of 21 held by Taliban insurgents and believed to be still alive. (Reuters)

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