That's always an issue with weapons, but if you opt out then you don't have them when you might need them. It's a dangerous world out there. Luckily for us, t

That's always an issue with weapons, but if you opt out then you don't have them when you might need them. It's a dangerous world out there. Luckily for us, technology is still more-often used for good. Explosives can kill your enemies, but they can also cut paths through mountains and bring together communities. IMO, the virtue signal where people refuse to work on defense technology is just self-identifying with the worst kind of cynicism about human beings and signaling poor reasoning skills. The Manhattan Project, which had the stated purpose of building and deploying nuclear _weapons_, employed our most brilliant minds at the time and only two people quit -- and only one because of an ethics concern. Joseph Rotblat left the project after the Nazis were already defeated and because defeating the Nazis was the only reason he'd signed on. Also this is disputed by some who say that he was more concerned about finding family members who survived the Holocaust...