What does Italian journalist Giuliana Sgrena know and why did the U.S. want to kill her?

Ever since the kidnappings and beheadings of non-military personnel in Iraq began nearly 2 years ago, many observers, readers and analysts have asked why the Iraqi resistance would commit these crimes, knowing they would turn world opinion against them. Many ask the same questions about the mass killings of Shiites with bombs. The Iraqi resistance has nothing to gain from these atrocities and the invader/occupiers have everything to gain in the propaganda war. We know that the CIA and Mossad have been very busy in Iraq but what kind of "work" are they doing? Many readers write to us with their suspicions that these killings and kidnappings are the work of Black Ops in Iraq.