Subject: Re: SCOTUS finds immunity for offiical Pres acts
You're missing the point here.
The point is that the Supremes got the ruling right.
You brought up Obama as an example of a prior President who might be affected by the SCOTUS ruling in the specific instance of the al-Awlaki killing. I don't think that's correct. Obama didn't do anything in connection with that killing that could give rise to criminal prosecution in the first instance (at least as far as I can discern, and no one has publicly alleged otherwise), so it's not germane to whether SCOTUS got the ruling right or not.