On April 04, 2015 the USS Donald Cook (DDG-75, an Aegis / Burke class destroyer) was sailing in the Black Sea when two Su-24 Fencers approached the USS Cook. One maintained a distance from the Cook while the other buzzed and returned to buzzed the USS Cook another eleven times. Not once during the incident was the aegis radar able to lock-on to the Russian fighter/bombers! Shortly after the incident, the USS Cook left the Black Sea area.
A new stealth would make aerial combat a game-changer. Similar to the situation to RAF's and Luftwaffe's defence before they had radar!! The ability to arrive at the merge before discovering the enemy aircraft or, the ability for an enemy to arrive at tanker or AWACS orbit is truly frightening! Or the thought of this system being added to ballistic missiles.
A few minutes later I remembered the Soviet Union/CIS working on a plasma device the would make their aircraft able to defeat radar as we know it, this could be the system! I only hope our intell people have been able to provide a lot of R&D information, some what like the PLAAF was able to get around a terra-byte of data just like the Russians and Chinese were able to get on the F-35 program!
http://www.navy.mil/submit/display.asp?story_id=80360 ____ An article about the incident. Or, search for "plasma stealth."