Chris Hedges and Joe Sacco: drawing America's invisible poor - audio slideshow

For his latest book, Days of Destruction, Days of Revolt, out this month in paperback, Pulitzer prizewinning author Chris Hedges collaborated with awardwinning cartoonist and journalist Joe Sacco to produce a heartfelt, harrowing picture of post-capitalist America. Together they explore the country's 'sacrifice zones' - areas that have been offered up for exploitation in the name of profit, progress, and technological advancement - and show in words and images what life looks like in places where the marketplace rules without constraints