New York City’s “Decency Commission is back. But this time “instead of acting as a culture vice squad, their role includes recommending policy, writing reports, and coordinating city, State, and federal agencies. Jitters concerning the return of a Decency Commission are understandable. It was only a few years ago that Rudolph Giuliani reconstituted the long-dormant commission to advise on what kinds of art should get city funds.”