Hyperveloce
Of course the BEA is considering sacred all informations especially if it come only and solely filtered and originated from them. Now I don't see the French Navy and very likely other vessels from other Navy making circles around whales talking (someone - not on this forum - thought that he had to say that in case there might be some confusions). And now it is a fact that a signal is received because I can't think one second (might be wrong) that all the people on board these boats do not exactly know what noise or signal they are looking for.
Wait and see mais le temps passe...