Great idea, but still afraid of the repeat of the same disaster. Wondered why we can't just switch to helium instead... this is why: https://phys.org/news/2010-08-world-...ze-winner.html
Hindenburg disasters could've been prevented but US didn't want to give helium to the Nazis..., I guess it's probably better that way. Had helium airships caught on, our supply of helium probably would be depleted by now... no more birthday party balloons!