In this web-exclusive video essay, Bill Moyers examines the cost of the American obsession with guns:

Every year there are 30,000 gun deaths and 300,000 gun-related assaults in the U.S. Firearm violence may cost our country as much as $100 billion a year. Toys are regulated with greater care and safety concerns.

So why do we always act so surprised? Violence is our alter ego, wired into our Stone Age brains, so intrinsic its toxic eruptions no longer shock, except momentarily when we hear of a mass shooting like this latest in Colorado. But this, too, will pass and the nation of the short attention span quickly finds the next thing to divert us from the hard realities of America in 2012.

We are after all a country which began with the forced subjugation into slavery of millions of Africans and the reliance on arms against Native Americans for its Westward expansion. In truth, more settlers traveling the Oregon Trail died from accidental, self-inflicted gunshots wounds than Indian attacks – we were not only bloodthirsty but also inept.