Into Pittsburgh one day last week rolled a cream-colored station wagon loaded with Polish highway officials and powered by high-octane U.S. diplomacy. Shepherded by a U.S. Bureau of Public Roads official, the four visiting Poles peppered Pennsylvania experts with questions on road-building materials and mechanization, marveled at superhighways, ogled multi-colored U.S. cars. Though few Pennsylvanians stopped to ogle back, the Poles were nevertheless important. Like another Polish delegation busy last week observing U.S. corn-raising techniques in Iowa, they were flesh-and-blood manifestations of a new warmth in U.S.-Polish relations.
The warmth...