The energy company Cuadrilla used Facebook to surveil anti-fracking protesters in Blackpool and forwarded the gathered intelligence to Lancashire Police, which arrested more than 450 protesters at Cuadrilla's Preston New Road site over a period of three years in a policing operation that cost more than £12 million. Legal experts have called the relationship between fracking companies and the police "increasingly unhealthy" and called on the ICO and the Independent Office for Police Conduct to…