By Mary McNamara, Los Angeles Times (TNS) Oh, it’s a rare and beautiful day when the best, most rousing, pointed and important speech is brought to you by C-SPAN. Remember when “The West Wing’s” President Bartlet launched a line-by-line tear-down of Leviticus after some conservative talk show host referred to homosexuality as an “abomination” because that’s what it was called in the Bible? Of course