1) A secure mode for assets would only allow specific people (through a list of usernames or group access settings) to edit an asset and publish.
2) Sometimes there are sensitive articles that, while they are being developed, should only be accessed by a select few (eg: only the author and a managing editor).
3) We would use it any time there are stories or large features that require confidentiality until publication. Especially articles that have a lot of fact-based research that needs to be vetted, or allegations that need to be confirmed.
4) All users would benefit from this feature. Our head editors and those with more independent and investigative privileges would benefit most from it, while allowing our managing editors access to their articles.
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