There is a section of the proposed pipeline that would run through terrority still under de facto Taliban control. A feasibility study done by the Asian Development Bank concluded this would pose a problem.
ASIAN DEVELOPMENT BANK PRESENTS FEASIBILITY STUDY FOR TRANS-AFGHANPIPELINE | Central Asia-Caucasus Institute Analyst
The countries involved have signed an agreement to purchase large amounts of natural gas from Turkmenistan. They did so back in April of this year. China has also signed a deal with Turk as well.
China, Turkmenistan sign natural gas deals - International Herald Tribune
Then there's this:
http://www.nytimes.com/2007/05/13/world/europe/13putin.html
Yeah, I'm sure that's not bothering the US govt. at all.
This whole thing is pretty easily researched. It's not a conspiracy theory, this is a real project planned for and funded by real people, in real countries. Zalmay Khalilzad, our UN Ambassador, was an advisor to a company called UNOCAL, who was in the bidding for the construction of the pipeline with another company from Argentina. In the 80's the CIA revived its practice of using private sector business agents for intel gathering, and one of Unocal's executives was providing intel to the CIA from negotiations he was involved in with several central Asian countries regarding a pipeline deal.
The only thing stopping this pipeline from moving forward is uncertainty in Afghanistan, mainly because of the Taliban still controlling some regions. There is also a lot of resistance from Russia as well. I'm sure it's no surprise or coincidence that Russia is back in the media/government doghouse, and so is Afghanistan. After all, they are both standing in the way of something very big.
You guys can choose to pretend it's not real, but the facts are right in there in your face.