Solid lumps of Plutonium eventually end up with helium bubbles in them over time, which degrades their structural integrity. If we want to have reliable weapons

Solid lumps of Plutonium eventually end up with helium bubbles in them over time, which degrades their structural integrity. If we want to have reliable weapons over time, we'll have to make new Plutonium pits as time progresses. Here's the Military Industrial Complex's take on it https://discover.lanl.gov/publications/national-security-science/2021-winter/pit-production-explained/ https://discover.lanl.gov/publications/national-security-sci...