Anna Chapman has not done anything against Britain as far as I am aware. So I find it odd that she has been deprived of her UK citizenship over some rather vague accusations of what she was doing in the USA? Odd that Igor Sutyagin wants to return to Russia after being sent to the UK, and Anna Chapman wants to come to Britain after being sent to Russia.
It seems that we live in a crazy world. But if Anna Chapman wants to come and live in the UK then I will offer to marry her and she can become a UK citizen again.