https://www.defense.gov/Explore/News/Article/Article/2419154/special-operations-leader-to-report-directly-to-acting-defense-secretary/ They don't say NSAM 57 but they make a very specific reference to it, and they have def. activated it  Ezra Cohen-Watnick, acting under secretary of defense for intelligence and security, who also spoke, noted that President John F. Kennedy predicted the need for special operations forces, which are particularly suited to unconventional warfare. "The global demands for special operations forces, then and now has confirmed President Kennedy's foresight. And now under the leadership of President [Donald J.] Trump, we are fully realizing President Kennedy's prescient view of special operations forces," he said.  https://www.jfklibrary.org/sites/default/files/archives/JFKNSF/330/JFKNSF-330-007/JFKNSF-330-007-p0001.jpg