Further discussion of possible experimental tests for the paradox of Einstein, Podolsky and Rosen

In a previous article we have suggested the experiment of Wu-Shaknov on the annihilation radiation of positronium as a test for the paradox of Einstein, Podolsky and Rosen. In this article, we answer certain criticisms of our conclusions, raised by Peres and Singer. These criticisms are shown to be erroneous, being based on an incorrect interpretation of the polarization of electromagnetic radiation in the quantum domain.