Robert E. Yarber is on top of the world — literally. The 41-year-old American currently resides in Tromso, Norway, a town you'll find at just about the tippy top of your map. It's about 220 miles north of the Arctic Circle. And given his troubled past — and the peace he's found in his new home — it's an apt description of his emotional state as well. "I sat in a prison cell, a six-by-nine cell, with another grown man for five years of my life," Yarber says. "I wanted to see Paris, London,