From here:

The mayor of New York City has disallowed clergy from praying at an event commemorating the tenth anniversary of the 9/11 terrorist attacks, sparking indignation from leaders who have pointed to the pivotal role religious groups played in the heroic response to the tragedy.

When King Darius decreed that no-one was permitted to pray to god or man, Daniel did this:

When Daniel knew that the document had been signed, he went to his house where *he had windows in his upper chamber open toward Jerusalem. He got down on his knees three times a day and prayed and gave thanks before his God, as he had done previously.  Daniel 6:10

Now that King Bloomberg has done something similar, perhaps clergy should take their cue from Daniel: go to the event and pray with megaphones.