The Americans have concluded their investigation into the incident in which Nicola Calipari was killed and Giuliana Sgrena was injured. They have concluded that no-one was to blame. Although they have described Sgrena's description of the events of that day as "absurd", and although the investigation was supposed to be carried out jointly with the Italian authorities, the Italians still have not been allowed to see the car.

See also:
http://xymphora.blogspot.com/2005/04/caliparis-warning.html
http://english.aljazeera.net/NR/exeres/B2FB50C8-E8B6-4841-A482-9A51AC964BFA.htm.