Meanwhile, Howard had been assigned by Lord Beaverbrook to investigate the 1930s English evangelical movement of the American religious leader Frank Buchman, the Oxford Group, which was later renamed Moral Re-Armament. Howard interviewed Buchman and eventually left the Daily Express and joined the inner circle of Moral Re-Armament.[4][5] In 1941, he published the book Innocent Men in which he took a different view of the politicians lambasted in Guilty Men only a year earlier. He still sharply questioned the relationship between press and government in wartime Britain but also expressed his views about the role that Moral Re-Armament could play.[6]
Moral Re-Armament made the fight against communism a high priority during and after World War II and considered it a threat to peace and religious freedom. Howard wrote 17 plays, which were mostly perceived as both extremely didactic and anticommunist on the themes of co-operation and dialogue in industrial relations, politics, and personal life.[citation needed]
After Buchman died in 1961, Howard was his chosen successor as leader of the worldwide Moral Re-Armament movement. Howard travelled extensively until he died of viral pneumonia in Lima, Peru, in February 1965.