The British Government wants a law to allow all phone calls and internet correspondence to be monitored.
Home Secretary Theresa May is going to introduce the bill at the end of the week.
Under the plan, all telecom and internet providers would have to record all activity so police and security services could monitor every email, call and website visit.
UK correspondent Malcolm Stuart says alarm bells are ringing for what's being described as a snoopers' charter.
"It's being argued that it's one thing to check on people rather interested in bomb making but quite another matter to discover if a respectable politician is rather interested in a bondage internet site."
Authorities would have to get a warrant to access the contents of the material.