Miles Perkins, 20, wears jeans showing his underwear in New York. In many cities, there is a growing movement to make it illegal to wear pants so low that the boxers show. (Photo by Hiroko Masuike / The New York Times) In a Der Speigel interview with Congressman John Lewis: SPIEGEL: Has there been any change in the African-American community brought on by his presidency? Lewis: He has instilled a sense of hope. People need hope. I'll give you an example: I have a Congressional colleague from California who, out on the street one day, saw a young black man,...