Who do you blame when this occurs?

Charley Knows • 24 and living without a thyroid 💪🏼
I apologise if this ends up becoming a rant but I am beyond frustrated. 
As many of you are probably aware London Bridge suffered another terror attack. So who do you blame? This question is being asked because of the mass of people blaming our countries security. It may seem like a stupid question but all I can hear, read and see is the blame shifted to security. I want honest answers. 
The security threat level was taken down to severe which still means an attack is imminant but everyone must remember that even with the threat level at critical that does not mean that security understand who, when and where an attack will occur. 
So if you believe the blame should be on the security of our country I pose several questions to you.
1. If security is to blame, what do you think they should be doing? 
2. If there was not a terror attack then surely our security wouldn't be needed? So why blame security over the terrorists? 
3. If it wasn't for our security many other people would have died, the response was almost immediate and prevented further people from sadly losing their life. So are they still to blame? 
Personally, I do not understand how anyone in a time like this can blame our security. Because if it wasn't for them, we may have had a lot more terror attacks, the attacks could have been much worse reffering to the death toll and they are the ones who make me feel safe. 
At a time like this I hate social media, mainly Facebook as everyone is very quick to give their opinion on our security but I would love to understand what they think they could have done. Our emergency services have been praised for their quick response and how they handled the situation yet all the keyboard warriors still believe they are to blame. 
If anyone disagrees with what I have said then let me know and I will compose myself. It just massively affects me that an attack like this happens and all we discuss on the news, social media, newspapers is how our security is at fault. 

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