Its a semi-long story. you dont have to read the entire thing to fully understand it but do you guys think its even physically possible. The Philadelphia Experiment was an alleged naval military experiment at the Philadelphia Naval Shipyard in Philadelphia, Pennsylvania, USA, sometime around October 28, 1943, in which the U.S. Navy destroyer escort USS Eldridge was to be rendered invisible (i.e.,cloaked) to human observers for a brief period of time. That is also referred to sometimes as Project Rainbow. The story is widely regarded as a hoax,[1][2][3] while the U.S. Navy maintains that no such experiment occurred, and details of the story contradict well-established facts about the Eldridge.[4] Philadelphia Experiment - Wikipedia, the free encyclopedia
I doubt they had the fiber optics necessary to do something like that in 1943. It is possible now, with lots of money, time, and effort, but honestly I don't think it is worth it. I believe "they" know it isn't worth it, either. I'm sure they are more worried about stealth features that make the ship smaller on radar and stuff like that.