Ideas for 9-11 Debunking Signs?

I'm going to the local fruitloop's starvation celebration tomorrow and I want to have some amusing signs. Ones that I've come up with:

"Fair Play for Al Qaeda Committee". Obviously stolen from Mark Roberts. On the back of that one I intend to have "9-11 Truthers: The Only Thing They Get Right Is the Date of the Attacks!"

Then, hitting on their penchant for "Google WTC 7", I'm planning "Google Evil Jewish Landlord Silverstein Jew". On the flip side, "Google Holocaust Deniers and 9-11 Truthers".

Any ideas? Short, punchy, funny is what I'm looking for.