As such, it is disturbing news that the ground beneath unit 4 is sinking.
The world in peril if unit 4 SFP collapses....
1. Unconstrained nuclear fuel -check
2. Reactor vessels breached -check
3. Ground water contamination -check
4. Sea contamination -check
5. Spent fuel pool fires -check
(remember all these were 'unlikely to occur' according to TEPCO)
5. Spent fuel pool collapse 'unlikely' says tepco
6. Units sinking 'unlikely' says TEPCO
I'd hate to have their track record.......