Despite warnings from the U.N. Security Council that a nuclear test would lead to severe consequences, North Korea claimed Monday it set off its first nuclear test.
The United States is pushing the U.N. Security Council to impose sanctions on Iran for ignoring a deadline to halt uranium enrichment, but not until EU negotiators meet with Iran next week. Margaret Warner reports from Tehran.
France offered its first take on Iran's proposal to re-open negotiations over its nuclear program, saying the door to talks was open, but only if Iran suspends uranium enrichment -- something it has opposed to date.
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