For more than a century, the United States has used landmines, cluster munitions and other highly explosive ordnance during conflicts around the world, and sold or given these deadly weapons to dozens of other nations so they can use them. 

Long after those conflicts ended, the deadly debris from these so-called explosive remnants of war continues to kill and maim countless thousands of people. The damage they cause to whole communities and regions by barring access to fields, roads and commercial centers is incalculable. They have crippled the economies of developing nations, especially those trying to mount post-war reconstruction efforts....