The debate over the proposed Islamic center near Ground Zero in New York has raised questions about religious tolerance in America. President Obama says an Islamic group's rights to build it are clear. Less clear, how Americans perceive the president's own religious identity.
A new poll by the Pew Research Center says that only one person in three knows Mr. Obama is a Christian, while nearly one in five think he's a Muslim. Why the uncertainty? One reason may be what the White House calls the president's personal rather than public approach to religion.
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