Washington. The aim of the international research team lead by the United States is to discern authentic photographs and those identifying montages and manipulations. The Information Engineering and Mathematical Sciences of the University of Siena are participating in this project. The University will be collaborating for a period of four years and is financed by DARPA (Defense Advanced Research Projects Agency), the American defence agency for advanced research. It is coordinated by Purdue University in Indiana. (9colonne)