"Upton Sinclair had come along, a young man with a mighty determination, and against heavy odds forced the publication of his novel, The Jungle, based upon his first-hand observations of the conditions under which meat was packed in the Chicago stockyards and under which the workers there lived. And President Theodore Roosevelt, who had testified that he would as soon have eaten his old hat as the canned meat furnished the American troops by the Chicago packers in 1898, appointed a commission to investigate Sinclair's charges."