"General Secretary Gorbachev, if you seek peace, if you seek prosperity for the Soviet Union and Eastern Europe, if you seek liberalization, come here to this gate.
"Mr. Gorbachev, open this gate.
"Mr. Gorbachev, tear down this Wall."
It was a determined challenge, delivered Friday by Ronald Reagan with his back to the Berlin Wall, across from the Brandenburg Gate in Communist East Germany. But the necessity the President felt to remind West Berliners, of all people, that the Soviet leader still commands a totalitarian society underscored a melancholy aspect of Reagan's nine-day journey through Western Europe. For all his eloquence,...