Hearing about nuclear weapons, although Shen Hao didn't show any change in expression, he took it seriously.
Honestly, in the war against the Blood Demon, speed was essential.
The reason they couldn't afford to delay was their greatest fear—that the Blood Demon would completely master humanity's most powerful force—nuclear weapons.
If the Blood Demon indeed gained control of nuclear weapons on a large scale, they would at least possess the capability to perish together with the human race.
If the war were to escalate to this point, even if all the Blood Demon were eventually eliminated, it would still be akin to a defeat for human civilization.
"I'm not very familiar with this aspect," Shen Hao asked, "but nuclear weapons shouldn't be so easy to produce, right?"