After numerous raids on American Communist Party leaders in the United States by the FBI, the Justice Department sought to destroy the party from within by seeking disillusioned members of the group. Because of his ill health and his loss of his position, the FBI targeted Morris and his brother Jack as ideal candidates to work as informants. Morris was approached by FBI agent Carl Freyman who found that Morris was not only angry over his betrayal by the American Communist Party, but has also become disillusioned with the Communist mantra, especially in light of the egregious actions of Soviet dictator Josef Stalin. Morris agreed to work with the FBI to gather information about the Communist Party. The U.S. Government provided medical treatment for Morris and he soon regained his health. Was assigned the title Agent CG5824S but was referred to internally as "58." Because the hope was that Morris would travel alone into the Soviet Union in a quest for information, the involvement was deemed "Operation Solo."

After two years of working his way back into the American Communist fold, Morris was summoned to a meeting where he was instructed to travel to Russia to arrange for financing of the American Communist Party by the Soviets. Traveled to the Soviet Union in April 1958 and met with his old friend Morris Ponomarov who deemed Childs the real United States ambassador. The two devised a plan by which to smuggle Soviet funds into the United States, using Morris' brother Jack as a courier. Over 30 years, the Childs brothers would facilitate the transfer of more than $30 million, which was then disbursed by Morris throughout the United States to different American communist causes (with the FBI, of course, monitoring the activity. The FBI took an inventory of the money and traced its origins, determining that a significant amount of it flowed in from Cuba).