A man kneels down to place a message on a makeshift memorial after observing a moment of silence for the victims of the Boston Marathon bombings marking a week to the day of the bombings at a memorial on Boylston Street in Boston, Massachusetts April 22, 2013. REUTERS/Jessica Rinaldi (UNITED STATES - Tags: CRIME LAW CIVIL UNREST) Published: Dub. 22, 2013, 8:01 odp. | Foto: Reuters