Human tension and/or stress related to the sharing or release of data resulting from concerns about: (a) unknowns about users, uses, and what users will learn from the data before the data producers themselves learn it; (b) what users will learn from the data; (c) data quality; (d) data traceability (or lack thereof); (e) potential requests for additional documentation and metadata; (f) potential questions concerning methodology used to produce the data; (g) lack of resources to support data sharing; (h) governance; (i) social or political interests and impact; (j) data ownership; (k) the desire to ëhold backí data to give researchers the time to publish articles based on those data; and/or (l) perceived risk of data misuse or misinterpretation.