If you want to find out how sharp a PR person is, ask them what the difference is between “embargo” and “NDA.”
Regrettably, there are a number of PR people who are sloppy with the term “NDA” – Non-disclosure agreement. “We can send you the release under NDA,” when in reality they mean EMBARGO.
A NDA is a formally written agreement that is signed between two parties and has the weight of law behind it for violation.
An embargo is an informal agreement to hold back news until some date/time certain.