A new poll appears to show increasing public skepticism about National Security Agency surveillance policies. The poll from the Pew Research Center found for the first time since polling began nearly a decade ago people in the United States are more concerned about protection of civil liberties than about protection from potential terrorism. According to the poll, 47 percent of people said their greatest concern about government anti-terrorism policies is that they have gone too far in restricting civil liberties, while 35 percent said the policies have not gone far enough. Overall, a majority — 56 percent — said federal courts fail to provide adequate limits on the telephone and Internet data swept up by the government for anti-terrorism efforts.