Comedian Dave Chappelle told a crowd gathered at City Hall Tuesday that moving the Punch Line comedy club would be like “burning down the Louvre.” The comedy institution faces displacement when its lease expires in August. The club has nurtured the careers of comics for over 40 years, including Robin Williams, Margaret Cho, W. Kamau Bell and others. District 3 Supervisor Aaron Peskin announced plans for a measure that would prevent any non-nightclub use of the building. Forum talks with comedians about why so many people are fighting to keep the Punch Line alive.