
Workers at Japan's stricken nuclear plant on
Thursday pumped nitrogen into a crippled reactor in a bid to prevent a
possible explosion and contain the world's worst atomic accident for 25
years.
With the crisis at the Fukushima Daiichi plant approaching the end of
its fourth week, operator Tokyo Electric Power said it was concerned a
build-up of hydrogen gas at the No. 1 reactor could cause another
explosion at the site.
The fresh challenge underscored the
fragility of the situation at the stricken plant, after rare progress
was seen Wednesday when workers plugged a hole spewing highly
radioactive water into the ocean.
TEPCO officials say hydrogen
building up in the housing around reactor No. 1 could mix with incoming
oxygen, creating...