In http://www.aei.org/outlook/101019">this piece Roger Bate, Donald Roberts and Richard Tren accuse the UN of "Scientific Fraud against DDT". Their Accusation is based on an Opinion paper byhttp://www.dovepress.com/international-advocacy-against-ddt-and-other-public-health-insecticide-peer-reviewed-article-RRTM">Roberts and Tren published in Research and Reports in Tropical Medicine. So let's look at their paper and see where the "Scientific Fraud" is.
Roberts and Tren's key argument is that reductions in malaria in the Americas were not the result of http://www.thegef.org/gef/">Global Environmental Facility interventions but were caused by increased use of antimalarial drugs. In their own words: