Can I release a tame rat into the wild?

First off, well done for giving the wild rat a safe place to recover. :) Wild rats can carry diseases picked up, well, in the wild, so yes they are more susceptible to parasites and other things which may spread to your pet rat, putting her health at risk. For now, I would keep it as far away as possible from your pet rat, because some illnesses can be airborne and may unintentionally spread to your pet rat, even if they are not in contact with each other.

I can't offer much advice about keeping, my advice would be to get it back to good health and evaluate it then. There's a good chance it won't be happy in captivity if it's older than weaning age (5 weeks), I would rehabilitate it with as little contact as possible (you don't want it to become used to humans as this will affect its ability to survive in the wild) and then take it to a suitable area for release. Please don't listen to the answers saying 'kill it', they are wild animals too and deserve as much respect as the next animal.

If you want a buddy for your girl then I would find a reputable breeder, most breeders sell babies at around 7-8 weeks of age which is a fine age to introduce at, and I'm sure your little girl would be happy to have a friend to cuddle up to also. X.

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.