Washington (CNN) - The sadness and anger that Americans felt after the terrorist attacks on September 11, 2001 have not gone away over the past decade, according to a new national survey.
A CNN/ORC International Poll released Friday morning also indicates that while two-thirds of the public says that the country will never completely return to normal, two out of three Americans also say that there is little reason for them to be afraid of terrorism.
There are also indications that 9/11 is fading from public memory. A year after the attacks, two-thirds of all Americans said they thought about the attacks at least once a week. Now that figure is down to 17 percent, with one third saying they hardly ever think about 9/11.
According to the poll, six in ten say that a terrorist attack on or around the 9/11 anniversary is unlikely, with nearly four in ten concerned about an incident in the coming days.
"Compare that to the 53 percent who thought that terrorists would attack on Christmas, 2001, or the 57 percent who worried about an attack on the following Fourth of July, and it seems likely that Osama bin Laden's death and the passage of time have convinced many Americans that the threat of terrorism is shrinking," says CNN Polling Director Keating Holland. "A lot of Americans spent the first few years after 9/11 waiting for the other shoe to fall, but they don't seem to have that same sense of concern any longer."
The survey indicates that Americans still feel sad and angry about 9/11. Eight in ten say they feel sad when they think about the 9/11 attacks - virtually the same number who reported feelings of sadness as the first anniversary of 9/11 approached in 2002. More than six in ten say they feel angry when they think about 9/11 - again, relatively little change since the first anniversary of the attacks.
One number that has gone down is the number who say they want vengeance when they think about 9/11. It's dropped from 45 percent in 2002 to 34 percent now.
"That's probably because the U.S. was finally able to deal with Osama bin Laden," adds Holland. "But only five percent believe that the U.S. is completely back to normal a decade after 9/11, and 63 percent believe that the U.S. will never fully recover."
The poll also indicates that the unity Americans shared after 9/11 has dissipated. After the attacks, 74 percent said that Americans were united and in agreement about the most important values. That number is now down to 27 percent.
One other note: According to the survey, one in five Americans have visited the Ground Zero site in the past ten years.
The CNN/ORC International Poll was conducted August 24-25, with 1,017 adult Americans questioned by telephone. The survey's overall sampling error is plus or minus three percentage points.
- CNN Deputy Political Director Paul Steinhauser contributed to this report