Cloak of Invisibility eh?... You mean Sam's Cloak I believe..This ‘Most Expensive’ Weapon Adds $2 Billion To Maryland’s Economy

“It’s like Harry Potter’s cloak of invisibility,” said Flynn, describing the plane’s stealth mode. “It really is omnipotence. It is flying with impunity because you know that no one can ever see you and you can see everyone.”

https://wamu.org/story/19/02/08/this-most-expensive-weapon-brings-2-billion-to-marylands-economy/#.XIZWOhNKhcA