Mar 23, 2008 -For almost five years, I have been chronicling the shocking number of suicides among U.S. troops in Iraq - and after they come home (it's a major component of my new book). They now number well over 1000, and a new one has come to light this past week. Or perhaps it was murder.

No matter, it can be said, as in the countless other cases, that he was "killed by Iraq."

Sgt. James Musack, 23, who…