The first drone warship just joined the Navy and now nearly every element of it is classified

[Tony]

The first drone ship has joined the U.S. Navy's fleet and now nearly every element of it has become classified.
Sea Hunter is a crewless, 140-ton, 132-foot-long robotic ship.
Since the drone ship's inception, the Navy has been hesitant to provide updates on its future role.

https://www.cnbc.com/2018/04/25/first-drone-warship-joins-us-navy-nearly-every-element-classified.html