The Muslim center planned near the site of the World Trade Center attack could qualify for tax-free financing, a spokesman for City Comptroller John Liu said on Friday, and Liu is willing to consider approving the public subsidy. The Democratic comptroller's spokesman, Scott Sieber, said Liu supported the project. The center has sparked an intense debate over U.S. religious freedoms and the sanctity of the Trade Center site, where nearly 3,000 perished in the September 11, 2001 attack.