Obama Calls for Dramatic Decrease in Nuclear Weapons  President
Barack Obama said the U.S. could reduce its stockpile of long-
range nuclear weapons by up to a third, and called upon Russia
to make similar cuts. Margaret Warner gets reactions to Mr.
Obama's call from former State and Defense Department official
Eric Edelman and Joseph Cirincione of the Ploughshares Fund.
Watch Video | Listen to the Audio  RAY SUAREZ: President Obama
announced today the U.S. could reduce its stockpile of long-
range nuclear weapons by a third and called upon Russia to make
similar cuts.  Margaret Warner has the story.   MARGARET WARNER:
President Obama made his new appeal for further nuclear weapons
cuts at the famed Brandenburg Gate, symbol of the city that was
a flash point in the Cold War years of nuclear standoff.
PRESIDENT OBAMA: Peace with justice means pursuing the security
of a world without nuclear weapons, no matter how distant that
dream might be. And so, as president, I have strengthened our
efforts to stop the spr