[boris]

Any nuclear thermal rocket engine would have to be developed and tested in Russia because the enviro-whackos would not permit it in the U.S.

Hence this is an inevitable deal--IF we want to go to Mars.

--Boris

[EagleUSA]

Any nuclear thermal rocket engine would have to be developed and tested in Russia because the enviro-whackos would not permit it in the U.S.
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You may have a point, IF the technology ends up being nuclear. Some have suggested the Ion-engine may be the real answer to long-term space rides...

[RadioAstronomer]

In a word - NERVA