A protester shouts slogans against Iranian leader Mahmoud Ahmadinejad in front of the United Nations during the 64th UN General Assembly in New York on September 23, 2009. Ahmadinejad is scheduled to deliver a closely-watched speech at the UN General Assembly where US President Barack Obama put Iran on the spot over its nuclear aims.
Lebanon marks fourth anniversary of Beirut port blast
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The Beirut port blast four years ago left an open wound on a country
already full of scars ... and now braced for more wounds. CNN's Ben Wedeman
reports.