Your call to unicode() is working correctly. It is the concatenation, which is adding a unicode object to a byte string, that is causing trouble. If you change the first line to u'''''' (or u'' ) it should work fine.
If html is not already a unicode object but a normal string, it is converted to unicode when it is concatenated with the converted version of rs0. If html now contains special characters you can get a unicode error.
I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.