The Union of Concerned Scientists held a press briefing with David Lochbaum and Edwin Lyman to help reporters understand the details of the NRC report on reactor conditions at Fukushima Daiichi Nuclear Station. The details explain how dire the conditions are at Units 1-4.

In the aftermath of the devastating earthquakes and tsunami that struck Japan, we’ve been trying to piece together the status of the nuclear station at Fukushima. There are six units there, and units 1 and 2 appear to be at risk.