I am thrilled that you are now using alt text. Though in this case I believe I would have put what Noam Chomsky was saying in that text. It seems far more relevant than a description of the picture itself. For the visually impaired:

"The smart way to keep people
passive and obediant is to strictly
limit the spectrum of acceptable
opinion, but allow ver lively
debate within that spectrum -
even encourage the more critical
and dissident views. That gives
people the sense that there's free
thinking going on, while all the
time the presuppositions of the
system are being reinforced by
the limits put on the range of the
debate." ~Noam Chomsky

means a lot more than a description of the the image.