It's really hard to kill these types of projects. Remember Total Information Awareness?
https://en.wikipedia.org/wiki/Total_Information_Awareness
It's still kicking and probably has many of the same corporations and players supporting it - and more importantly being supported by it.
"DHS envisions the system, initially projected to cost about $4.2 billion and to be completed by 2021." (Guess that has slipped by already.)
"Last year, a subsequent schedule adjustment and budget increase of $354 million left the project without a planned date of completion." (Nice work if you can get it!)