It turns out that someone doesn’t know his history, and thinks that a nuclear powered hypersonic airliner is somehow a good idea.
I would suggest that a review of the attempts at nuclear aircraft propulsion in the 1950s, including the nearly catastrophic tests on the NB-36H, where there was a (thankfully) minor airborne fire during testing:
Could this be the first nuclear powered airliner?
Currently, you would have to sit in a plane for eight or more hours after taking off from London Heathrow airport bound for New York’s J.F.K airport. Even first class travelling may not be fun in this case.
Imagine if you were told that within three hours someone could rush you over Atlantic Ocean and put you at J.F.K NY in a very comfortable plane as if you were in first class. Imagine if this were done with a speed of around 2300 mph/3,682Km/h.
They article suggests to that once fusion is perfected (magical thinking) it will be all hunky dory.
While the byproducts of Fusion are far more benign than those of fission, this is still an intensely stupid idea.