The REAL worst case scenario... plane + shampoo napalm?

I was talking to some people a few weeks ago and had a revelation that only last night 'gelled' while watching "The Assassination of Richard Nixon" starring Sean Penn from 2004, but about the true story of Sam Byck, a guy who lost his wife and kids, his job and his sanity and decided to hijack a passenger plane and have it flown into the White House. (sound familiar?)
I can't help thinking it was Penn's way of saying Bush Administration claims that 'no one knew' what was possible and preventable was straight up BULL SHIT!
Byck brought onboard a gun and a suitcase with gallon sized anti-freeze jugs of gasoline...

When we were talking about the potential of a shampoo bottle bomb, Richard Reid the 'Shoe Bomber', matches and lighters, etc... as well as the Anarchist Cook Book style 'binary' bomb where one mixes 2 safe substances to create a real BANG... I realized that a potential terrorist attack on a plane doesn't have to be the perfectionist version of a hole blown in the side causing an explosive decompression and/or airframe failure and eventual crash - what if they just made homemade NAPALM and squeezed it all over the passengers and set them on fire?
Do THEY know about this?
THEM and US?
What else aren't our own gov't and the 'baddies' telling us?
If the media was honest and not concerned with being alarmists, we'd understand thinsg better and give up our bottles of shampoo more willingly.