 The derivations of all the variants of Bell’s Inequality depend upon independence conditions inspired by relativistic causality. In the early tests of Bell’s Inequalities it was plausible that these conditions were satisfied just because the 1 and the 2 arms of experiment were spatially well separated in the laboratory frame of reference. This satisfaction, however, is a mere contingency not guaranteed by any law of physics, and hence it is physically possible that the setting of the analyzer of 1 and its detection or non-detection could influence the outcome of analysis and the detection or non-detection of 2, and conversely. This is the communication loophole, to which the early Bell tests were susceptible. It is addressed by ensuring that the experiments on the two systems take place at spacelike separation. 