St. Patrick's Day Parades are time-honored traditions in New York and Boston, but Mayors Bill DeBlasio and Martin Walsh, respectively, have gone where politicians of the past might have feared to tread. Both refused to march because gays and lesbians aren't allowed. Boston's parade was yesterday; New York's was today. Both were without traditional features, not just the mayors but key sponsors: Guinness, the quintessential Irish brewer, and Massachusetts' own Sam Adams. Scott Malone is editor in charge of the Northeastern States for Reuters.