'Social' Animal: Mark Zuckerberg, played by Jesse Eisenberg, may be a revolutionary thinker, but he doesn't want to topple the system, says critic John Powers. He wants to be successful within it. Merrick Morton/Columbia Pictures hide caption

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Jon Stewart and Stephen Colbert address thousands gathered for The Rally to Restore Sanity and/or Fear on the National Mall in Washington on Saturday. Saul Loeb/AFP/Getty Images hide caption

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People gather for the Rally To Restore Sanity And/Or Fear on the National Mall on Saturday in Washington, D.C. Win McNamee/Getty hide caption

itoggle caption Win McNamee/Getty