BBC: Work began in recent days to remove, bit by bit, the giant chimney protruding from the Chernobyl nuclear power station. It's one small part of a mammoth engineering project, now nearing completion, designed to slash the risk of another major release of radioactivity.
Massive and glittering in the weak winter sunshine, a half-built arch looms over Chernobyl's decaying industrial landscape of cooling towers and power lines.
One of the biggest engineering projects in history, it has been likened...