It may be surmised from the preceding discussion that uncovering the existence of USU, and developing procedures by which these uncertainties can be taken into consideration, requires evaluators to examine features of the **data** points themselves, including both their mean values and assigned uncertainties, and not simply to accept the author-provided mean values and uncertainties as a matter of faith. Failure to consider the possible existence of USU, if the contributions are significant, will result in the very deficiencies that manifest themselves in the aforementioned clues.