Officials at latest press conference have made statements that make it clear that there is confusion as to what is going on at the Fukushima Daiichi plant.

Statements made include the fact that there is confusion over types of units of radiation measurement.  Also, confusion over what is causing smoke coming from reactor 3, and confusion over what is causing some radiation readings to go up.

Now saying that reactor 4 actually exploded yesterday (not just fire).  Photos presented as proof, and to explain how spent fuel rods were exposed.