'BUT if you have nothing to hide then why worry?'
Is the usual retort of those in favour of the legislation. So lets get real, they want it so they can monitor your every move.
They want to know where you go, who you see, who you talk to, what you wear, your sexual preferences, how much you have in the bank, they want you on a DNA database, who your children are and more and more and more.
Get the picture? Information is power and power will corrupt. Do you really think it is OK if they are allowed to know so much about you they are in effect sleeping with you in bed?
Power and corruption, to keep you under control. Still got nothing to hide?