U.S. Secretary of State Condoleezza Rice said that President Bush would not respond to a letter from Iran's President Ahmadinejad in which he criticizes U.S. policy and democracy. Two policy experts discuss avenues for communication between the U.S. and Iran.

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On Christmas Eve 1906, Canadian inventor Reginald Fessenden conducted the first radio broadcast in history, sending a recording of Handel's Largo, Christian hymns and a "Merry Christmas" to United Fruit Co. boats in the Atlantic Ocean.

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