Pehechaan Kaun?

When most of you will read the topic name, I am sure you will think of Navin Prabhakar and the hilarious act he put forth for a comedy show. I totally enjoyed it, and can still look at it again and laugh heartily :) But today the emotions are a little different and this much liked comic question is now - a serious question!
The night these in-humane terrorists created havoc in the city, they truly made Mumbai into a "City that Never Sleeps". In the days to follow, we have seen/read/heard of a lot of action - death count increasing, brave army/NSG/Police men laid their life, Mumbai's favorite and most opulent hotels charred. But not to forget, we were also criticized for not being prepared to counter act, for the lack of resouces, and many other such reasons.
In the wake of these attacks on MY MUMBAI, there are no other thoughts running in my head but - What the hell was going on? Why do all this? Is it over yet? But the most important one was, "Who are these people who dont want any good for us?". In sorts to say- enemies of us common people!

Are they the various people who are driven by the wrongly implied morals of their ages old religion? Or even the ones who train them to do so? Or could they be our (not-so-anymore) beloved politicians who care very little about the living people, let apart the dead? Or is the entire government to be blamed for its lapse in the intelligence?Or is it the neigbors with whom we already have had a few other feuds? Or is the West who have inflamed such people by deeming their values as being immoral and angered them to this level? Or is it really just the common man, who looks at all this, gets scared, and then with his gung-ho spirit continues to live as a cumpulsion in his life - believeing that no matter what - Zendagi Migzara! (Life Goes On!) Can you help me find the culprit? Pehechana kaun hain?