So Putin thought, "Hey, if Britain won't hand over Litvinenko, we'll just kill him in Britain!" Of course Britain is understandably outraged and now wants former Federal Security Service officer Lugovoi back in Britain to answer charges of murder. Russia is dragging its feet and is talking about a trial in Russia instead.
What were you thinking, Vladimir? What would you do if Russia was offering protection to someone and another country came in and killed him on your soil? You were supposed to learn this kind of thinking as a child. Remember? If you don't like being hit, don't hit others.