The finger-pointing and raft of rumors that have plagued Russian President Boris Yeltsin's government since "Black Tuesday," theOct. 11 ruble crash, intensified today as two top ministers left office. Yeltsin fired a senior Russian defense official, received the resignation of a leading economic reform advocate and appointed his third finance minister in four weeks. Preceding today's hat trick by three days, the Russian leader dismissed his first deputy defense minister, a general accused of corruption. The government said little about the impact of the tumult on continued economic reform, but the official who resigned today -- economics minister Alexander Shokhin -- said: "The economy has become a hostage of politics."Post your opinion on theInternationalbulletin board.