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We point out three apparent inconsistencies in the treatment of oscillationcoherence from reactor neutrino and source neutrino experiments in recent paper"Damping of neutrino oscillations, decoherence and the lengths of neutrino wavepackets''. First, that the dependence of the oscillation probability upon thesubsequent interactions of entangled recoil particles implies causalityviolations and in some situations superluminal signaling; second, thatintegrating over a non-orthogonal basis for the entangled recoil leads tounphysical effects; and third, that the question of what interactions serve tomeasure the position of the initial state particle remains ambiguous. Thesepoints taken together appear to undermine the claim made therein that theeffects of wave packet separation must be strictly unobservable in reactor andradioactive source based neutrino experiments.

Comment on "Damping of neutrino oscillations, decoherence and the lengths of neutrino wave packets''