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A sign of love for Oslo is seen inside of a sea of flowers and lit candles placed in memory of those killed in Friday’s bomb and shooting attack in front of Oslo Cathedral July 25, 2011. (Credit: Reuters/Wolfgang Rattay)

A sign of love for Oslo is seen inside of a sea of flowers and lit candles placed in memory of those killed in Friday's bomb and shooting attack in front of Oslo Cathedral July 25, 2011. (Credit: Reuters/Wolfgang Rattay)