During the Second World War he enlisted in the British Army in South Africa, and returned to journalism there after the war. He became a news commentator at Radio South Africa and broadcaster for the South African Broadcasting Corporation. He became chief assistant editor of the Rand Daily Mail; however, after he wrote an editorial in favour of fascist Sir Oswald Mosley, who was staying with him, he was sacked.[7]
Benson was a strong supporter of apartheid.[8] He opposed any form of racial integration, and any change to white minority rule in Africa.
Invited to Rhodesia by P. K. van der Byl, who knew Benson was strongly against any increase in rights for black Africans, from 1964 to 1966 Benson served as Director of the Government Information Department to the Rhodesian government under Ian Smith. In Rhodesia, he wrote speeches for Smith, re-organized the once-neutral state information department into an active propaganda agency, served as state-empowered press censor, and spoke for the anti-communist Rhodesian Front.[5][9][10][11][2]
Benson was most likely involved in a black propaganda effort aimed at electors in the UK, in an effort to sway the 1966 Kingston upon Hull North by-election. A pamphlet was sent to UK electors, supposedly printed by the "Tudor Rose Society for the Protection of the British Way of Life", which did not exist.[12] Benson left Rhodesia when Smith shifted to a more moderate stance.[13]
In late 1980 or early 1981, Benson told a South African government "Commission of Inquiry into the Mass Media" that South Africans were being inundated by outsider views carried by the two largest newspaper agencies in South Africa, the Argus Group and South African Associated Newspapers (SAAN), both financed from England. Benson said these agencies were controlled by the "international capitalist-communist conspiracy", and that they were effectively foreign agents waging undeclared war on South Africa. Benson recommended that the press in South Africa should become an organ of state policy as in Taiwan.[16]