Lunev asserted that some of the hidden caches could contain portable tactical nuclear weapons known as RA-115 "suitcase bombs". Such bombs have been prepared to assassinate US leaders in the event of war, according to him.[6] Lunev states that he had personally looked for hiding places for weapons caches in the Shenandoah Valley area[1] and that "it is surprisingly easy to smuggle nuclear weapons into the US, either across the Mexican border or using a small transport missile that can slip undetected when launched from a Russian airplane.[1]