Japan Hit by major earth quakes and Tsunami

[SaadiaB]

Re: Japan Hit by major earth quakes and Tsunami

@underthedome

Media reporting a meltdown may know be under way. 170,000 people have been moved away from the plant. Several workers already exposed to the radiation. Worst fears appear to be coming true

Can someone explain how a meltdown can happen and why it can’t be controlled and what are the consequences ?