The survey found 44 percent favored at least some restrictions on the civil liberties of Muslim Americans. Forty-eight percent said liberties should not be restricted in any way.

The survey showed that 27 percent of respondents supported requiring all Muslim-Americans to register where they lived with the federal government. Twenty-two percent favored racial profiling to identify potential terrorist threats. And 29 percent thought undercover agents should infiltrate Muslim civic and volunteer organizations to keep tabs on their activities and fund-raising.
…and 20 percent favored requiring all muslims to carry identification cards and wear “crescent and moon” badges.

Poll shows U.S. views on Muslim-Americans