5 Years. That is the amount of time that it will take miniature nuclear reactors to be ready for mass production say Los Alamos scientists. This is the same group that developed the first nuclear bomb so their claim carries a little more weight than your average mad scientist. I would say a few megatons more.
A company called Hyperion Power Generation has licensed the technology from the U.S. government. These $25,000,000 "personal" nuclear reactors have the power to supply energy to 10,000 homes and will only require fueling once every 7 to 10 years. The radioactive core is so weak, it would be very difficult to make a weapon out of it if that is your concern. This is why it has to be replaced so quickly.
These nuclear bomb shelters, so to speak, are encased in cement, buried deep underground and do not contain any moving parts. So by itself, it won't become a mini-Chernobyl. Though with motivation and a LOT of money and resources, this IS possible.
I don't quite know what to think about this. On the one hand it seems like an answer to many of our energy problems. Of course this will cause as many problems as it will solve. There will be leaks and there will be deaths. Is this avoidable? Will our ever growing hunger for electric power be quenched?
I must also consider the potential threat. Will tiny little bombs in every neighborhood be too much for a person with twisted intentions to resist? Bad people will stop and nothing and the previously considered impossible has been done.