  We argue that, in the recent letter by A. Danan et al. [PRL 111, 240402
(2013), arXiv:1304.7469], if weak measurements are performed such that complete
destructive interference is not disturbed, claims such as "some photons have
been inside the inner interferometer but they never entered and never left"
should not arise. Standard quantum mechanics not only explains the physics
better than the two-state vector formulation the authors advocate, but it can
tell a very different story.
