Pile of Scrap’s real and raw discussions give unmatched insight into the 5th most dangerous industry in the country. Travel across the nation with John Sacco, Sierra International Machinery President, as he reveals the truth behind recycling and waste facilities in America. The environmental and economic impacts of this $500 billion-dollar industry go unnoticed by most, but the work the men and women in this industry do is vital to the save the world and our natural resources.