The micronation at the end of the road that seceded where others failed continues its 37th annual Conch Republic Independence Celebration this week, with a varied schedule of festivities memorializing Key West’s tongue-in-cheek declaration of war against, subsequent secession from and nearly immediate rejoinder of the United States in 1982. If you’re new to the story, let’s recap: Back in the early 1980s, the U.S. Border Patrol set up a roadblock on U.S. 1 ? the only highway connecting the Florida Keys to the mainland ? in front of the Last Chance Saloon in Florida City. Although cars leaving the Keys weren’t technically crossing an international border, they were nevertheless subjected to a search by border agents, who required passengers to provide proof of citizenship before they were allowed to pass through ? ostensibly to crack down on illegal immigration and narcotics smuggling. A 19-mile traffic jam immediately formed along the only road in and out of the Keys, and soon the Key