The scene would have been unimaginable just a few years ago: Andrei Sakharov, 67, for years one of the Soviet Union's most famous dissidents, on U.S. soil. The Nobel Peace prizewinner and ex-prisoner of Gorky arrived in Boston last week on his first trip outside the Soviet Union and declared himself a "freer man." A supporter of perestroika since his release from internal exile two years ago by Soviet leader Mikhail Gorbachev, Sakharov was traveling with official approval and a blue VIP passport. At a press conference he urged the U.S. to back Gorbachev's reforms.
But as ever, Sakharov's first concern...