John Rabe

(L-R) Billionaire philanthropist art collector Eli Broad, BCAM architect Renzo Piano, and LA County Supervisor Zev Yaroslavsky. Piano was telling a joke about how many architects it takes to screw in a light bulb.

A lot's been said about the politics behind the Broad Contemporary Art Museum at LACMA. Off-Ramp architecture critic Sam Hall Kaplan tells us whether it works as a public space and renowned architect Renzo Piano weighs in.