This is due to Chrome's webrequest extension API: http://developer.chrome.com/extensions/webRequest.html
Thank you for this! Was looking for a reference to it.
From what I have heard, UK has been getting a flood of immigrants who want nothing more than to live on the UK's generous welfare system.
The non-productive immigrants are totally draining the system.
I challenge you to find a source for that, I dare you. No, wait, I double dare you! Ironically, immigrants subsides benefits for the rest of the rest of the UK. http://niesr.ac.uk/blog/migrants-benefits-and-public-services-what-does-new-research-evidence-tell-us
Where there's a will, there's a relative.