Well, it turns out that the ICRC specifically warned members of the military and the Bush administration that they were engaging in war crimes:
Red Cross investigators concluded last year in a secret report that the Central Intelligence Agency’s interrogation methods for high-level Qaeda prisoners constituted torture and could make the Bush administration officials who approved them guilty of war crimes, according to a new book on counterterrorism efforts since 2001.
The book says that the International Committee of the Red Cross declared in the report, given to the C.I.A. last year, that the methods used on Abu Zubaydah, the first major Qaeda figure the United States captured, were “categorically” torture, which is illegal under both American and international law.
….Citing unnamed “sources familiar with the report,” Ms. Mayer wrote that the Red Cross document “warned that the abuse constituted war crimes, placing the highest officials in the U.S. government in jeopardy of being prosecuted.” Red Cross representatives were not permitted access to the secret prisons where the C.I.A. conducted interrogations, but were permitted to interview Abu Zubaydah and other high-level detainees in late 2006, after they were moved to the military detention center in Guantánamo Bay, Cuba.
The book says the C.I.A. shared the report, which Ms. Mayer first described last year in less detail in The New Yorker, with President Bush and Secretary of State Condoleezza Rice.
I really hope that there is a prosecutor in The Hague getting his ducks in a row over this case now.