several hundred activists at the US Social Forum in Detroit heard philosopher-activist Grace Lee Boggs and Immanuel Wallerstein of Yale University discuss today's daunting problems of environmental destruction, economic collapse, and political paralysis in terms of the decline of the capitalist world system and the urgent need to build and struggle for a new system that is more sustainable and just. Presented by the Boggs Center - boggscenter.org and filmed by Melissa Young and Mark Dworkin of Moving Images - movingimages.org.