I am bit confuse, if we are able to read this then it is not interesting to NAVY. Please correct me if I am wrong, but if patent is interesting for military pur

I am bit confuse, if we are able to read this then it is not interesting to NAVY. Please correct me if I am wrong, but if patent is interesting for military purpose or it is crucial for the defense they can simply take it, and declare something as top secret? What is even more troubling for inventor is that they do not need to pay any royalties or fees.