Found on the SFASU campus, Saturday morning
"Take off the blinders
Google: Larry Silverstien owner of the Word Trade Centers. Admitted on PBS that WTC 7 was brought down by a controlled demolition."
I'm not sure what the point of the chalk writer is exactly, but this site appears to back it up. You may want to don your tinfoil cap before clicking on the link, though.
Speaking of 9/11: