So I have been watching videos on YouTube lately about lost nuclear bombs from the 1950's and 1960's. Seems that many of those classified documents are now coming up for public release and I'm a little surprised at the number of nuclear weapons that were lost at sea and never recovered. It is kinda scary that some of those items are considered ticking time bombs because eventually the sea water will erode the casing material away and expose the plutonium core to the sea.

I wonder why there hasn't been a more consolidated effort to find and recover so many devices, especially given the environmental impact of such a potential disaster?