Nothing happened.
The fact is that terrorists want to target nuclear plants.
What's unlikely is that any of them should succeed. Terrorism isn't that easy.
But gladly terrorism isn't that easy, right?
How many terrorist attacks of that scale have been successfully conducted ?
Over the last twenty years, only one.
During the same period, there has been a dozen of large-scale earthquakes.
And as I said, you're fare more likely to die from a car accident than from any big disaster you see on television.