Heading back to a border that I can always cross with ease because of an accident of birth that gave me U.S. citizenship.  On the flight from Amsterdam to Washington today, I worked some more on an essay that began in Luxembourg after visiting the American cemetery.  It's the one that begins with the song that begins, "My Country, 'tis of thee, Sweet Land of liberty... of thee I sing."  I'll finish it one day and post it here.