Moscow to drill for Sibe- rian oil could prove a thankless task for the United States, says Cobb. Americans should not place too much faith in the Kremlin's promises of future oil in return. Yet, he observes, U.S. "economic influence" in the form of technical aid for Russian energy programs could yield diplo- matic advantages. Washington should resist the temptation to apply economic leverage blatantly (e.g., freedom for Jewish dissidents in ex- change for oil drills). But economic pressure...