The dam is more than halfway through, and will be completed by 2009. When the Three Gorges gets flooded, mankind is going to lose one of the world's most beautiful natural sites. Not even I have seen it, but if you don't want to miss it, better visit before 2009.
Anyway, so convinced he was about stopping the dam ("Mommy, we have to go to China!") that he even drew out some plans. It's quite comprehensive, and involves: us sabotaging the blueprints with chalk and eraser; throwing pebbles into the turbines to stop them from turning; and releasing termites onto the finished part of the dam.
Not everything he drew is clear in this jpeg, but you can figure it out. Just don't report us to the Chinese authorities.