Grow up. The Russians used a Chemical Nerve Agent more toxic than fucking VX Gas on the sovereign territory of another country. It's not an exaggeration to say that is an act of war. The ex-GRU spy and his daughter were not the only victims; a British police officer is in a serious but stable condition in the same hospital. If Putin is allowed to get away with this, it makes the job of every Western intelligence agency immeasurably harder. The entire reason such agencies exist is to gain information on the enemy. And one of the best ways to do that is to recruit sources within your enemy's various security and military forces. No one is going to take the risk of passing secrets to MI6, the CIA etc etc if they believe they won't be protected. This is one of the reasons the Russians used a Nerve Agent that could be so easily traced: they were sending a clear message to anyone who might follow in Skripal's footsteps that it doesn't matter where they run to or who is supposed to be protecting them. They, and their families, will pay the price.