It's fucking horrible. And I'm sorry Rad, but I think your country is a bit far down the list of targets for international terrorism. And yeah, Smeagol lives in England, but btw, there are over 70 million others too.
I heard them say on the news that it would be interesting to see how public opinion went. I'm pretty sure it'll become a little more hostile to terrorists. Before, we've been in a kinda: "Oh it's awful, but at least it is'nt us, eh?" state. That'll change. They'll become a little more open to anti-terrorism acts. Plus, I'm sure the whole country wouldn't say no to seeing whoever did this being shot in the head on national television.
However, I did notice something about the British reaction. Yes the underground trains and buses stopped, but I noticed a sense of "Fuck them, we've got lives to get on with." People weren't running around, screaming for mercy from the lord and claiming apocalpyse, they were just quietly stunned, (and merely flooded the telephone networks as they called family to tell them they were alright). The British are fucking resilient and are'nt gonna let some selfish terrorists bring their lives to a halt.