Whistleblowing website WikiLeaks today began publishing more than five million confidential emails from US-based intelligence firm Stratfor, the anti-secrecy group said. The messages, which date from between July 2004 and December 2011, allegedly show that Dow Chemicals used Stratfor to monitor and analyse the online activities of activists seeking redress for the 1984 Dow Chemical/Union Carbide gas disaster in Bhopal.