On April 5, 2010, WikiLeaks released a video of an airstrike conducted by two U.S. Apache helicopters in Iraq. During the airstrike, the helicopters killed about a dozen men, including one reporter from Reuters.
The release of the video was another instance of the New Diplomacy, where individuals would release information on the Internet that some government(s) would rather keep hidden.
Apparently, the target of this leak was the U.S. government, as the video showed America killing a reporter. Presumably, America did not want this video to get released to the public.