US Secretary of State Hillary Rodham Clinton says she is outraged by reports of a new massacre in Syria and is demanding that the U.N. Security Council take action to stop the violence. She also called for an immediate cease-fire in the area of the massacre so that U.N. monitors can get there.

Ms. Clinton said in a statement on Friday that Syrian President Bashar Assad’s regime is deliberately killing innocent civilians as it tries to put down 16 months of unrest and that history will judge the Security Council if it fails to act.

“History will judge this council,” she said. “Its members must ask themselves whether continuing to allow the Assad regime to commit unspeakable violence against its own people is the legacy they want to leave.”

Although she did not mention them by name, Ms. Clinton’s warning was directed at Russia and China, which have blocked previous U.N. efforts to impose sanctions on Syria.

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