U.S. sees missile defense deal with Russia by May

The U.S. ambassador to Russia was quoted on Monday as saying he was confident Russia and NATO would reach an agreement by May to cooperate on missile defense despite Moscow's statements that the former foes are far from a deal.

U.S. plans for a shield against potential missile attacks from Iran were a big factor in deteriorating relations with Russia during the administration of George W. Bush and have continued to strain improving ties under President Barack Obama.

Moscow is demanding binding guarantees from the United States and NATO that the system would not threaten Russian security, a non-starter in Washington because of strong opposition to any set restrictions on missile defenses.

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