For the last ten years, 9,000 workers have been building a 25km dam to protect
Leningrad and its priceless treasures from the sea. But
Soviet environmentalists are calling for the whole structure to be blown up.
With Judith Hann , Howard Stableford, Peter Macann and Kate Bellingham. Producers Jack Weber
Cynthia Page and Edward Briffa Studio director Phillip Dolling Editor Richard Reisz