Legislation freeing police to concentrate on local priorities by setting up a new National Crime Agency, to deal with (for example) organised crime and border policing, is to be brought forward soon.
But the appeal of letting the Americans get on with what they know best, freeing himself to concentrate on the French stuff, while taking a stake in any new entity, might be hard to refuse.
America's priority at the moment is to recruit Iraqi police and militia for humdrum security duties, thus freeing its own troops to concentrate on the rumbling, sometimes lethal, combat operations.