Oookayy. I don’t know how I missed this CT (apologies if this has been done before – search doesn’t deal well with either KAL or 007):
My initial conclusion is that the crazy paranoid Soviets didn’t want anyone conducting a proper search-and-rescue/recovery effort in their waters (and, probably wanted to get at/doctor the flight recorder to support whatever politically-motivated story they wanted to tell about the shootdown), so that explains the lack of access to the fuselage/passengers. So definitely, they acted fishy, but that’s what paranoid commies do.
The two things that most make me doubt the CT are: (a) some limited human remains, pretty dismembered, apparently did wash up in Japan; and (b) ditching a jumbo jet on water, at night, and having any significant number of passengers survive and get to land, seems a very low-percentage possibility (though the above site does contain counterexamples to this proposition).
Has anyone else even heard of this CT? Does anyone still actively believe/support it?