Τιμώντας τα θύματα στη Βοστόνη
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People attend the interfaith memorial service at the Cathedral of the Holy Cross for the victims of the Boston Marathon bombing in Boston, April 18, 2013.
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U.S. President Barack Obama and First Lady Michelle Obama arrive for an inter-faith memorial service for the victims of the bombing at the Boston Marathon in Boston, April 18, 2013.
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Homeland Security Secretary Janet Napolitano testifies on Capitol Hill in Washington, April 18, 2013, before the House Homeland Security Committee. Napolitano says the FBI wants to speak with two men seen in at least one video from the Boston Marathon, but she says she isn't calling them suspects.
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A line of investigators is form as they enter a building adjacent to one of the blast sites near the Boston Marathon finish line, in Boston, April 18, 2013.