The censored sections include recommendations that the American military modify their checkpoint procedures to give better and clearer warning signs to approaching vehicles.
The official Italian report on the incident expected to be published this week will accuse the American military of tampering with evidence at the scene of the shooting.
The Americans invited two Italians to join in their inquiry, but the Italian representatives protested at what they claimed was lack of objectivity in presenting the evidence and returned to Rome.
Relations between Rome and Washington remain tense.
"Tense" is diplomatese for bad. You can read the full accounts here.