A sampling of the many 9-11 conspiracy signs at the March 20 rally in San Francisco:

Mossad has taken the place of the Elders of Zion in the psyches of modern anti-Semites.

This sign was by far the most common sign at the rally. Not sure who printed them up, but seemingly half the people in the crowd were carrying them.

Everywhere you looked, there were more and more of these 9-11 conspiracy signs.

Other folks created their own homespun 9-11 conspiracy fantasy signs.