Guardian: Hundreds of environmental activists were on a secret "blacklist" used by construction firms in an attempt to disrupt high-profile protests against road building and other developments.
Files on more than 200 campaigners were held alongside a list of more than 3,000 construction workers who had raised legitimate health and safety concerns or belonged to a trade union.
Last week MPs said the list had deprived thousands of people of work and driven some families to destitution. Evidence of the...