Thanks Jack.

BTW... just thought of sommat that is kinda thread drift. Years ago I was at the nuke near me as an engineering student. The massive concrete containment walls and dome were touted as one of the "extra" safeguards of the CANDU reactor system. I also recall watching a video (hahaha... movie) of concrete burning in a materials course. As a matter of fact, the 6m thick containment walls degraded to a point where they were considered inadequate by initial design standards twenty odd years after construction.

Also, I phoned a radio talk show years ago and had a chat with Dr. Stanton Freidman in which he chastised me about my trepidation regarding the safety of nuke plants. I asked him how The Ocean Ranger (oil rig) sank... a failure of safety systems perhaps? After they went to commercial I was disconnected.

And, no, I have no support for my statements.

In the long run, I still support our nuke until truly, or at least reasonbly clean, energy production is doable.