One of the major grievances uniting protesters across the US is anger at the government for putting corporate welfare above that of citizens. Not that you would pick that up by watching much of America's mainstream media.
Activists are getting creative to get that point across, and their discontent is loud and graphic. Thousands of Americans have resorted to banners and t-shirts to send out a message of frustration with what they see as the government acting on behalf of big corporations rather than the people – a message the protesters say their media are failing to deliver. Source.