In the following few years, others became skeptical of the HIV theory as researchers initially failed to produce an effective treatment or vaccine for AIDS. Journalists such as Neville Hodgkinson and Celia Farber regularly promoted denialist ideas in the American and British media; several television documentaries were also produced to increase awareness of the alternative viewpoint. In 1992–1993, "The Sunday Times", where Hodgkinson served as scientific editor, ran a series of articles arguing that the AIDS epidemic in Africa was a myth. These articles stressed Duesberg's claims and argued that antiviral therapy was ineffective, HIV testing unreliable, and that AIDS was not a threat to heterosexuals. The "Sunday Times" coverage was heavily criticized as slanted, misleading, and potentially dangerous; the scientific journal "Nature" took the unusual step of printing a 1993 editorial calling the paper's coverage of HIV/AIDS "seriously mistaken, and probably disastrous."