New York 'light towers'
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9/11: US 'honours the memory' of attack victims

US President Barack Obama has told Americans they should honour those who died in the 9/11 attacks, but look to the future with "hearts full of hope".

Mr Obama was speaking during a memorial concert at the Kennedy Center in Washington, closing a day of official commemorations of the 10th anniversary of the attacks.

Nearly 3,000 people died when four hijacked airliners crashed in New York, Washington and Pennsylvania.

Steve Kingstone reports.

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