uso french navyThis is not a first hand account I am a recent beleiver so I study many news reports from a differant aspect. I was reading about the aircraft that went down over the atlantic and about the French navy useing sonar to look for the black boxes and to my amazement they talked about a underwater signal they picked up and that it suddenly moved out of range to my understanding black boxes dont have a propulsion system. But there was no mention of USO have you heard anything about this.