"If you set off cold fusion bombs your going to kill everyone from here to Houston". President Joshua T. Adams
Cold fusion weapons were basically like atomic bombs with massive improvements and with enough firepower being able to wipe out everything from California to Texas, almost half of the United States. They were originally very affective and only used as a last resort for any desperate situation. However they were proven us,was during the War of 2016 retaliatory strike as the aliens attached small devices, that created an artificial shield bubble as they attached and the bombs exploded they did no damage to the alien ship and instead destroyed the human bomber inside a shield bubble. Though in the end they made a perfect gift for the alien queen as Doctor Okan stated. "Then we fly it up her royal ass and it's bon voyage."