Train to the roof of the world

there were photographs splashed across most of the newspapers this week about china's latest engineering feet.
The train to lhasa, with which china wants to tighten it's grip over tibet, and integrate it more tightly with the mainland.
Well there are more sides to this issue.
One is probably how much of a engineering feet is it?
As the rail line passes through regions where the soil is only composed of permafrost, global warming is the biggest challenge.
Second is the envoirmental damage this railway it is going to do.
Third, as dalai lama put it is the cultural genocide that is happening.
But, on the other part it has the ability to bring more investment into the region thus alleviating one of the poorest regions in the world.
I found good analysis of all this in a guardian article dated september 2005.
here is the link to it
http://www.guardian.co.uk/china/story/0,,1573971,00.html
