A new Rasmussen Reports national telephone survey finds that 79% of U.S. voters now think it is likely there will be another terrorist attack in the United States in the next year. That’s a 30-point jump from the end of August when just 49% of Americans felt that way. The current level of concern is even higher than it was in the summer of 2007 when 70% considered an attack likely. In December 2008, 58% said an attack was likely.