While the warmth of glasnost tolerates some public protests, the Soviet Union still finds ways of chilling the passions of its national minorities. The latest target is Latvia, the Soviet Baltic republic forcibly incorporated into the U.S.S.R. in 1940. As Latvian activists prepared for last week's commemoration of their lost independence, Soviet authorities sought to thwart them by trotting out an enigmatic figure from the spy wars of the 1950s: Harold ("Kim") Philby, 75, an Englishman who was the most successful Soviet mole in the British Secret Service.
Rarely seen in public since his defection in 1963, Philby appeared on Latvian...