Plutonium ain't easy, so you'd probably want to ship pre-made pits into orbit (we've got plenty already made), preferably one at a time so we don't get a big cr

Plutonium ain't easy, so you'd probably want to ship pre-made pits into orbit (we've got plenty already made), preferably one at a time so we don't get a big critical mass of plutonium sitting in a desert in case the rocket crashes.