The project is no where near $68 billion. It was estimated years ago to cost north of $100 billion. Example of why this is being built and the water crisis in the central valley.
Sen. Feinsteins Husbands Company to Bag $1 Billion for Government Deal
http://www.breitbart.com/big-government/2015/01/17/sen-feinsteins-husbands-company-to-bag-1-billion-for-government-deal/
Dianne Feinstein’s husband wins near-billion dollar California ‘high speed rail’ contract
http://www.americanthinker.com/blog/2015/03/dianne_feinsteins_husband_wins_nearbillion_dollar_california_high_speed_rail_contract.html
That’s Right!!!