First I want to say that I enjoyed your interview Phil. I am always impressed with your desire to correct the misconceptions people hold with regards to science.
That said, I think you may have made a mistake in your interview. You mentioned something about it not being possible to freeze a person (and succesfully reheat them living) because of the high concentration of liquid water in our cells (a la Austin Powers.) Water expands as it freezes. You are correct in two of those three ideas... water expands and humans have a high concentration of water. However that does not necessarily mean that a frozen cell will be destroyed. Biologists and doctors often freeze and unfreeze cells sucessfully. Examples are fish and other amphibians, blood, blood plasma, simple organs, etc. I believe cell membranes are often malliable enough to absorb the expansion of water... think of a balloon with water in it. Yes, the balloon will be mostly water; yes, the water will expand when frozen, but the balloon surface will expand with the water and not necessarily break (depending on the balloon material of course.)
By the way... I realize we don't have the technology, at the moment, to succesfully freeze and unfreeze a living human, but it certainly is not impossible nor inconceivable.
Anybody else agree with me, or am I comparing applefish to orangehumans?