I've been trying to find it for years but about 20 years ago when that guy from New Zealand was trying to build his own cruise missile for under $20k I found a

I've been trying to find it for years but about 20 years ago when that guy from New Zealand was trying to build his own cruise missile for under $20k I found a DoD paper that had a line I'll paraphrase that stood out to me: 'the DIY cruise missile will become the AK-47 of the 21st century'