[petre]

Nitrocellulose? One could turn a troller full of cotton underwear into a bomb. So are they going to ban underwear on flights next?

[wiredfool]

They already swab for nitrates. It can trigger a false positive if you've been around an application of fertilizer.

[chx]

You could create a dust explosion out of almost anything containing small enough particles and you can learn how from YouTube videos. It's seriously that easy. Are they going to ban baby powder next? Sugar, flour, corn starch, whatnot?

But all you have achieved is a hole in the fuselage. That sucks but it's nowhere near enough to take a plane down. https://en.wikipedia.org/wiki/Southwest_Airlines_Flight_812 for example.