Nation: The Lull That Lapsed

"From now on," said a U.S. official in Saigon, "they're going to have a tough time guessing how, when and where they may be hit. Some days they may not be hit at all. Other days they may get hit a little, and other days they may get plastered almost from border to border." In that spirit the U.S. last week ended a five-day lull in bombing raids against North Viet Nam.

Running Out of Bridges. In the days after the lull lapsed, U.S. planes, almost without letup, prowled north of the 17th parallel. Carrier-based...