More than half of New Yorkers say they are very or somewhat worried that a terrorist attack will happen during the Republican National Convention next week. Justice Department says it has arrested, charged or convicted more than 150 people in the last three months in a wide investigation of Internet crimes. Russian official says one of the two downed Russian airplanes broke up in midair, just moments after sending a distress signal, contradicts earlier statements made by investigators who said human or technical error was the likely cause of the crashes not terrorism.”]