NEW DELHI -- China's move to build a $137 billion hydropower project in Tibet -- which will be the world's largest -- has triggered environmental and security concerns in India, at a time when frosty ties between the neighbors appear to be thawing.
Plans for world's biggest hydropower project stoke environmental, security fears

China plans to build a massive dam on the Yarlung Tsangpo river in Tibet. The waterway flows into India and Bangladesh.
NEW DELHI -- China's move to build a $137 billion hydropower project in Tibet -- which will be the world's largest -- has triggered environmental and security concerns in India, at a time when frosty ties between the neighbors appear to be thawing.