From the Article.
As our bus left reactor four and drove along the sea front, I pointed my new monitor out of the window towards reactor building three. Suddenly the needle started to spike - 1,000 counts per second, then 2,000, 3,000, finally it went off the scale.
There, outside the bus, just a few dozen meters away is the real dead zone, a place where it is still far too dangerous for anyone to go. No human has been inside reactor three since the disaster. To do so would be suicide. No-one knows when it will be possible to go in.
When I asked the same experts how long it would be until reactors one, two and three could be dismantled, they shook their heads. When I asked them where they thought the melted reactor cores were, they shook their heads again.