it was ultimately canceled in 1994 by S.Amdt. 2127 to H.R. 4506, at greater cost than finishing it. I suppose the article is written from a pro IFR pov, but as

it was ultimately canceled in 1994 by S.Amdt. 2127 to H.R. 4506, at greater cost than finishing it. I suppose the article is written from a pro IFR pov, but assuming lobby powers at play I'm sure it could have been worked around for everyone to benefit from a cleaner energy source.