Fifty-seven percent of Americans believe that terrorists will "always find a way to launch attacks no matter what the U.S. government does," according to a latest CNN poll released on Tuesday.

The survey also found that the percentage of Americans who blamed the Bush administration for the 9/11 terror attacks had risen from a third to almost half over the past four years.

Asked about how much blame should be attributed to the Bush administration for the attacks, 45 percent said either a "great deal" or a "moderate amount," up from 32 percent in a June 2002 CNN/USA Today/Gallup poll.

But the poll showed that the Clinton administration did not get off lightly either, with 41 percent of respondents blaming his administration a "great deal" or a "moderate amount" for the attacks.

That is only slightly less than the 45 percent who blamed his administration in a poll carried out less than a week after the attacks.

The poll, carried out between Aug. 30 and Sept. 2, questioned around 1,004 American adults by telephone.

Source: Xinhua