Instapundit leads us to an article those who are on the mall today will probably wish they'd read before they left:

Now, I mentioned earlier this week that pointing out the dumbest arguments made by extremists on the other side of the political divide is neither an enriching nor an intellectually substantive activity. However, since ANSWER is one of the main organizers of the protest tomorrow, I figure I should provide all y'all with some information about what the group believes.
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Here are some highlights:

The global anti-war movement must be a movement of international solidarity against the U.S. empire. (Page 2)
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From its inception in 1948, Israel has been a colonial state based on "ethnic cleansing"...[Israel] launched devastating wars against Egypt, Syria and Jordan.
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[The Cuban] revolution remains strong and is a source of inspiration for people throughout the hemisphere.

ANSWER has been a front for various Marxist loons since (as I recall) even before Vietnam. Saying this usually causes anti-war folks in the room to sigh and roll their eyes, but the truth hurts. The Vietnam anti-war movement failed largely because of its association with such (indeed, the same) left-wing extremist groups. This movement will founder and fail for the same reasons.

But by all means go have a good time. I'm sure the music will be great!