Science and technology

Associated Press
FILE - In this Thursday, April 18, 2013 file photo, Salah Eddin Barhoum, 17, sits in his apartment in Revere, Mass., with one of the trophies he won in an athletic competition, and the bag he was carrying on Monday near the finish line of the Boston Marathon. The high school student, of Moroccan descent, said he is scared to go outside after he was portrayed on the Internet and on the front page of the New York Post as connected to the deadly Boston Marathon bombings. Photos of Barhoum and a friend were posted on websites whose users have been scouring marathon finish line photos for suspects. (AP Photo/Rodrique Ngowi)

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