Switzerland agreed to buy F-35 jet fighters to park on a remote runway. Then the U.S. zeroed in on the Wangs, who owned the rustic hotel next door. UNTERBACH, — The Hotel Rössli, a century-old lodge in this Alpine valley village, enjoys a spectacular view . ... But it is the view from the back that caught the attention of American intelligence agencies. About 100 yards from the rear of the rustic, wood-paneled inn .. cuts the runway where the Swiss military had agreed to base several F-35s, the world’s most advanced jet fighter. The airstrip, only partly fenced, is...