Mandark: your suggestion then, is that Clinton's actual policy is to literally, "do away with completely so as to leave no trace," and by using nuclear weapons,* as opposed to simply defeating them militarily but using a strong word to assert the certainty of that defeat, in order not to be misunderstood? Prole accused me of being disingenuous, but I think the label fits your post better.
Seriously, and leaving all disingenuousness behind, active vs passive voice--while perhaps having some symbolic significance--results in no practical difference in actual policy (Mandark implies the difference is our response to a nuclear attack on an ally vs ourselves, which reminds me I have a great deal on the Brooklyn Bridge if you're interested), and overall none of these candidates have an actual, real, practical difference in policy between what they're really saying and the real, practical reality of what will happen in any of their terms. Even Obama is (or at least his staff / surrogates are) backing down from the idea of an unpreconditioned summit between Presidents, meaning the difference in actual concrete and manifest policy is purely rhetorical. And again, I come back to the central question, namely what do you expect the outcome will be from such talks.
*(maybe she was talking about a demographic shift, right?)