Originally posted by FinalAnswer
Twilight Wiki says Aro notes that humans do have the capabilities to kill vampires, they just rarely get to use them due to vampires being faster and stronger, and it "worries him".How do humans have the capacity to kill vampires? Explain it. DOITDOITDOITDOITDOIT
It's been a long time since I read it (I was reading it for charity), but if I remember correctly it was Aro who was afraid in the FUTURE our technological advancements may become a threat. I'm not 100% on that though.
But I'm pretty sure a nuke would kill them ...