This combo made from file photos shows Yale President Richard Levin in New Haven Conn. on Sept. 13, 2009, left, and New York Mayor Michael Bloomberg in Cambridge, Mass. on Nov. 29, 2011. Bloomberg is facing off with Yale University over efforts by the NYPD to monitor Muslim student groups. Levin on Monday, Feb. 20, 2012 said in a statement that monitoring of students based on religion was "antithetical" to the schools' values. Bloomberg defended the practice, saying there is nothing wrong with officers keeping an eye on websites that are available to the general public. (AP File Photos)

This combo made from file photos shows Yale President Richard Levin in New Haven Conn. on Sept. 13, 2009, left, and New York Mayor Michael Bloomberg in Cambridge, Mass. on Nov. 29, 2011. Bloomberg is ... more
This combo made from file photos shows Yale President Richard Levin in New Haven Conn. on Sept. 13, 2009, left, and New York Mayor Michael Bloomberg in Cambridge, Mass. on Nov. 29, 2011. Bloomberg is facing off with Yale University over efforts by the NYPD to monitor Muslim student groups. Levin on Monday, Feb. 20, 2012 said in a statement that monitoring of students based on religion was "antithetical" to the schools' values. Bloomberg defended the practice, saying there is nothing wrong with officers keeping an eye on websites that are available to the general public. (AP File Photos) less

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