Pentagon Retrofits Minuteman III ICBM Silos with B-Plug Kits [Nuclear War]
...silos more secure by installing something called Fast Rising B-Plug Kits in the silos. The obvious questions are: Do they mean they weren't secure enough before? And more importantly, what the heck is a Fast Rising B-Plug
A B-plug is exactly that, a plug. Not any plug, though, but a steel security door located inside the cylindrical shaft...
