Ralph Nader, the consumer advocate and presidential candidate, has inundated the U.S. Postal Service for decades with suggestions. Even in better times, he was concerned that American citizens were being short changed by the agency, which lost $5 billion last year, thanks to the proliferation of e-mail and the added burden of having to pre-pay its retiree health benefits. Today, Nader is more adamant than ever that stamp buyers should have a say in the USPS’s fate. He talked to me about how to fix the USPS post office and how he relishes going to the post office. Read more.