1. Although a fuel like this might work in the Traveller Universe, I'm not sure that it occurs in sufficient quantities to be a viable fuel source in the real universe.
2. It's a sobering reflection on the way that pseudo-scientific spin can undermine real science. (It is perhaps fortunate that this material was not posted here a few weeks ago! )
I could easily believe that 90% of the US population would sign up to ban the stuff - It's worrying.
But not necessarily in a readily useable and cost-effective form for filling your fuel tanks. In Traveller, you don't even have to figure out what to do with hundreds of kilograms of Sodium Chloride, let alone all the other potential contaminants! It's probably the scooping and filtering systems that would let you down in real life.