False dichotomy (thanks heavens for the built-in Firefox spell checker

). You're making it sound as if we can either debate you, or sit there twiddling our thumbs while wondering what's on TV.
Empirical questions, such as "Who flew the planes into the towers", and the aptly misnamed "9/11 truth" mess in general, isn't handled by debates, it's handled by scientific investigation. When you were given math problems to solve in high school, you didn't get up on a podium and declare that life is meaningless if
x does not equal 60, you got out your calculator, pen and paper and solved the problem. When track runners compete in the Olympics, the referees don't hold formal panel debates to determine how fast they run, they check their stop watches and camera recordings. When scientists (true scientists, that is) want to establish who killed 3000 people on 9/11, they investigate the attack.
The 9/11 truth movement is not being ignored. It has had its claims shot down by actual scientists for a decade. Science doesn't need to waste its time with pointless debates. Anyone curious about what really happened can read the scientific literature. You'd probably get more out of a fistfight.
But debates aren't about establishing who is right, any more than ski jumping is about determining who is best at playing the violin. Skilled debaters aren't good at determining and spreading facts, they're good at rhetoric and coming across as convincing. In debates, they are up against people who are experts at the field being debated, but not necessarily skilled at all in the field of debating. Now, you can reply, "that may be true, but can't the side of reason send its own master in rhetoric, a professional debater, perhaps?". Sure, we could pool our money and hire someone. But then it would be just that -- a professional debate, a fight to determine who has the sharpest tongue. A battle of wits, as it were.
Science isn't about wits. It's about learning.