Philadelphia Magazine editor Tom McGrath and Robert Huber, author of the controversial "Being White in Philly" cover story, faced their critics at a forum Monday night at the National Constitution Center. McGrath opened by saying he was sorry to anybody who was hurt by the article, because that was not his intent, but adding that he did not regret publishing the story in the March issue. Huber told the packed auditorium of about 200 people that the purpose of the article was to explore "how white people relate to black people in the inner city, or don't relate to them."...