Today, the Government of Israel took an important step forward in proposing an independent public commission to investigate the circumstances of the recent tragic events on board the flotilla headed for Gaza. Through a presidential statement of the United Nations Security Council, the United States joined the international community in condemning those acts which led to nine fatalities and many injuries on board the flotilla, and supporting the completion of a prompt, impartial, credible, and transparent investigation.
We believe that Israel, like any other nation, should be allowed to undertake an investigation into events that involve its national security. Israel has a military justice system that meets international standards and is capable of conducting a serious and credible investigation, and the structure and terms of reference of Israel’s proposed independent public commission can meet the standard of a prompt, impartial, credible, and transparent investigation. But we will not prejudge the process or its outcome, and will await the conduct and findings of the investigation before drawing further conclusions.
While Israel should be afforded the time to complete its process, we expect Israel’s commission and military investigation will be carried out promptly. We also expect that, upon completion, its findings will be presented publicly and will be presented to the international community.
Barack Obama, Statement by the Press Secretary on Israel's Investigation Into the Flotilla Incident Online by Gerhard Peters and John T. Woolley, The American Presidency Project https://www.presidency.ucsb.edu/node/292221