Remember that Al-Awlaki guy (however you spell it). The US/Yemen (known al queda terrorist) citizen targeted and killed in a drone attack in 2010 for planning the death of Americans in Yemen? His ties to al queda were public.
So the story goes...he's having coffee discussing the latest technique on how to kill us filthy Americans, and recruit some young guys to blow themselves up--which is totally legal and celebrated in Yemen. On they way out to get in his car hellfire missles launched by drones blow him up and everyone he was with. So here is a US citizen on foreign soil enjoying his latest scheme on killing infidels with all his buddies. Breaking laws? Nope, hes in Yemen. But now he's dead. Unconstitutional? You bet! There was no trial to even make him guilty of execution. Even to this day he was never the actual doer, just a full on encourager and terrorist trainer (again, legal in Yemen) Was Yemen even a war zone? He was a terrorist, but he was a US citizen after all. By this logic all you need is a good enough excuse. Dont think for a moment that this drug "war" isnt gonna get so hyped up so as to look like a "good" excuse.
Did the dude deserve it, probably, ok YES! I am happy about the outcome, however, do you see any parallels?
One might argue that he is plotting murder and we are at war yadda yadda so its different, well maybe you are right, but in the end its all semantics....Slippery slope? Dunno...Only time will tell.
So to answer the question about smoking happy grass and getting on the plane...You're probably good, if you cab dodge the hell fire missles launched at you while on the tarmac
