The idea
One of the craziest ideas the Labour government brought in was a requirement for ISPs and telephone companies to keep records of all our phone calls and emails and for them to be available to the government. That law should be repealed. If security services need to listen in to terror suspects, then that should be authorised on a case by case basis with proper judicial process.
Why is it important?
Because the government has no right to snoop on our personal communications.