The American Wanderer, in All His Stripes I absolutely loved this piece in last Sunday's times by Michael Powell. I would quote the entire piece, but here's a taste:
“Unrootedness is, and always has been, part and parcel of being American,” Arnold Rampersad, a professor at Stanford University and biographer of Ralph Ellison and Hughes, said in an e-mail message. “It is the flip side of perhaps the defining aspect of Americanness, the capacity of its citizens to reinvent themselves.”