There are multiple interesting bits, worth watching the whole thing at some point.

Something that stuck with me was that dude had an uncle that worked at a bolt factory down the road, and now there is literally no way to source domestically made bolts. And that they could find one retired guy after scouring multiple states who could help make an injection mold. I'm sure some of the larger defense contractors have a few guys who can do this, but that makes for a pretty low bus factor.