I got this from stopspp.com which cited the source World Net Daily.
Cheney wrote a letter to a costituent denying claims of a superhighway.

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August 1, 2007
Now Cheney Chimes In: Ain’t No Superhighways
posted by Lee
VP latest to make official denial, some call it ‘gaming semantics’



Despite evidence to the contrary, Vice President Dick Cheney says there is no “secret planâ€