JASDF F-35A wreckage - giving nightmares to US

Exactly twenty years ago, the world’s military technology leader United States of America was doing everything to salvage the wreckage of its first stealth aircraft F-117 which was lost to SA-3 surface-to-air missile of Yugoslavian Army. A stealth bomber which was supposed to be invisible to radars was identified and acquired by a (supposedly) not so skilled army. The US put its best efforts to salvage the remains of the aircraft to ensure its stealth technology remains secret.