Campaigners say UK surveillance powers must change after court ruling

Britain will need to amend its law allowing for sweeping powers to carry out mass digital surveillance after a court ruled on Tuesday that previous legislation was illegal, civil rights campaigners said.London's Court of Appeal backed a challenge led by lawmaker Tom Watson, deputy leader of the opposition Labour party, that it was not lawful to access personal data such as internet use and phone records where there was no suspicion of criminal activity or where there was no proper oversight.The