And from the MRC (hat tip: OBH) :
If the Haditha allegations are true, it is certainly a major story deserving widespread attention. But so much coverage -- so far in advance of any authoritative account of what happened -- makes journalists seem eager to spread a story that portrays the U.S. military as bad guys. The networks' heavy coverage of Haditha stands in contrast to their pattern of overlooking the stories of most of America's top military heroes in the war on terror....(emphasis mine)
Maybe they thought we wouldn't notice?