Nikkei falls back as bank plan uncertainty rises

(Updates to midafternoon)

TOKYO, Feb 10 (Reuters) - Japan's Nikkei average fell 0.4 percent on Tuesday as a firmer yen and growing uncertainty about a U.S. bank rescue plan pared earlier gains, while some exporters fell after the yen surged against the euro.

A report in Japan's Nikkei business daily that Russian private lenders will ask Moscow to renegotiate with European and other foreign banks to postpone repayment on up to $400 billion of its private-sector debt sent ...