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The day should have been remembered for the memory of the 9/11 terrorist attacks on New York and Washington ten years ago Sunday, two extremist groups stole the headlines as fighting broke out during the 9/11 memorial.

Dozens of members of both the English Defence League and Muslims Against Crusades clashed during the memorial service which was attended by Prince Charles the Duchess of Cornwall as well as Prime Minster David Cameron, Deputy prime Minister and leader of the Liberal Democrats Nick Clegg and leader of the opposition Ed Miliband. The Mayor of London Boris Johnson also attended and abuse was hurled at him by both groups as he entered.