The Iranian writer Afshin Molavi knows well the politics of Sean Penn. Writing on Saturday on the blog “Iran Scan,” Molavi penned an accurate appraisal of the actor’s current trip, supposedly under the auspices of the San Francisco Chronicle, to cover the forthcoming election in Iran. “I wonder how Sean Penn will see things,” Molavi wrote. “Will he honestly portray what he sees? Or will he be blinded by his hatred of President George W. Bush to fall into the trap many a good leftist falls into: defending the Islamic Republic to take a jab at Bush. Progressives in America...