That $8b is only for engineering studies!
From your source:
In late-stage talks, Obama and Senate Majority Leader Harry Reid, D-Nev., pressed for $8 billion to construct high-speed rail lines, quadrupling the amount in the bill that passed the Senate on Tuesday.
Do you have a source that supports your contention that the $8 Billion is only for engineering studies, rather than for
construction, as your above-quoted source indicates? Do you have a source that provides the actual amount that was in the bill as passed, rather than the amount that "Obama and Reid pressed for"?