If you lived in a country struggling from terrorism and corruption you'll understand my reasons. I don't mind losing my privacy for sake of safety of people.
Doesn't help that it's completely out of context as well, IIRC.
But even in this quote the weasel word "essential" is included in the term "essential Liberty". So what is absolutely essential? Could there be legitimate disagreements on that?
If it's struggling from corruption then that is even worse. What happens when someone who is corrupt gets in charge of the surveillance? They could do anything, like have everyone they don't like branded as terrorists.