Comment The US is actively destroying it's Plutonium (Score 2) 122
I found it odd that this little blip state that Plutonium is in short supply. The reason we don't have a lot of it is because the US is actively destroying it's Plutonium reserves. There are countless patents for machines that destroy Plutonium. Here is an article about how the DOE is considering alternatives to destroying Plutonium, like using it for something constructive instead of making bombs.
http://www.world-nuclear-news.org/ENF_Alternative_route_for_plutonium_destruction_1507091.html