BRUSSELS—A centerpiece plan in Europe's bid to ease its
financial crisis, widely credited with calming markets when it
was unveiled last year, is under pressure as euro-zone officials
spar over how to implement it.  As senior euro-zone finance-
ministry officials met this week in Brussels, technical
complications and second thoughts from some governments
threatened to undermine commitments from euro-zone leaders to
take pressure off indebted governments by allowing their bailout
fund to directly capitalize banks in these countries.  However,
direct injections into weak banks would deplete the euro-zone
bailout fund's lending capacity much faster than would extending
loans to governments, the fund's usual role, the head of the
bloc's bailout fund said in meetings this week, according to two
euro-zone officials.   At the same time, some governments are
seeking ways to limit the fund's risks. Rich countries,
including Germany, are insisting that governments should remain
responsible for at least some of the direc