So far (and to my dismay) Obama's
DoJ has failed to move against these "alleged" criminals. But, as I said, I'm not a lawyer... and there may be some loopholes that need closing (even though the LAWS, and CRIMES in violation thereof, are pretty well documented, IMO).
It seems the "focus" of the cited article (and my OP topic title) is for "prosecution of crimes against humanity". That is to say: there are a million+ Iraqis dead, a million+ Iraqis maimed, and millions more Iraqis driven from their homes & possessions... all due to BUSH's "illegal invasion & occupation of Iraq" -- i.e., "war of aggression" (both unprovoked and contrived-reasons for same) as is set forth in the U.N. Charter (a "treaty" to which the U.S. is a signatory ... and thus the Articles of said charter are "the supreme law of the land" as is set forth in Article Six of the U.S. Constitution). IOW: this "bill" to be brought before the Senate... would clear the way for prosecution of crimes other than maltreatment, torture, and even murder of prisoners in our custody... it would open the door to prosecution for "crimes against humanity".
Again, this is just my opinion (and not a legal one).
...here's a little more, from the OP cited article (which is worth reading, in its entirety, IMO)
"The Crimes Against Humanity Act of 2009 covers some of the most atrocious crimes committed in recent history, such as the campaigns of mutilations and murders of civilians in Sierra Leone and Uganda, the systematic rape of women in Burma and in the Democratic Republic of the Congo, and the ethnic cleansing in Bosnia and Kosovo. Because these crimes are not considered to be genocide, under existing U.S. law prosecutors do not have the ability to hold the perpetrators accountable. Crimes against humanity is a distinct category of crime and a separate statute is needed to provide United States courts with jurisdiction to indict those who commit these acts if they are ever present in the United States...