The advent of 5G has renewed public interest in the safety of cellular communications. So how should we evaluate 5G in terms of safety? Is it a threat or could 5G technology actually lead to reduced exposure were it used to replace what we use today? This talk will investigate what is changing with 5G towards an understanding of how widescale 5G deployment will change RF exposure to the general public, as well as an assessment of the corresponding need to develop more sophisticated exposure verification procedures than are in place today. In addition, there will be a review of the ongoing debate and scientific evidence surrounding the veracity of existing safety limits which are based on purely thermal effects.