Health care during incarceration is a problem most places in the world. As far as I can tell in the U.K. and Europe it is generally better. But what Mr. Assange is experiencing in the U.K. is pretty comparable to the U.S. If Americans are going to bother to fret over his situation you should probably have a similar or greater level of concern for what is going on in your own country which you actually have some hope changing. To have special concern for this one person is just trading on fame, you might as well be following tabloids.