Michio Ishikawa, the former head of the Japan Nuclear Technology Institute and the current “most senior” advisor to the Institute on Asahi TV, April 29:
“I believe the fuel rods are completely melted. They may already have escaped the pressure vessel. Yes, they say 55% or 30%, but I believe they are all melted down. When the fuel rods melt, they melt from the middle part on down.
“I think the temperature inside the melted core is 2000 degrees to 2000 and several hundred degrees Celsius. A crust has formed on the surface where the water hits. Decay heat is 2000 to 3000 kilowatts, and through the cracks on the crust the radioactive materials (mostly noble gas and iodine) are escaping into the air. <...>
The show’s host says “But wait a minute, Mr. Ishikawa, you are a proponent of nuclear power and we expected to hear from you that everything is going well at Fukushima…”
Mr. Ishikawa answers, “Well, if I’m allowed to tell a lie…”
http://enenews.com/top-japanese-nuclear-expertproponent-the-government-announcement-is-wrong-i-believe-all-the-fuel-rods-are-completely-melted-down-video