Here where I live, about 27 miles from the facility where the Plutonium for Nagasaki was fabricated, I have heard quite a few opinions on the matter. Most emanating from former Hanford workers and their families mirror yours, as one might expect. Similar sentiment at Los Alamos, where my dad worked for a while, naturally. I hope y'all are correct; haven't made up my mind on this one and probably won't absent direct input from the Holy Spirit!
Whew.
In sum: check your Catechism.
The whole context is worth a look.