The outgoing director of GCHQ has used his farewell speech to praise the UK surveillance agency’s practices. In the wake of Edward Snowden’s revelations, Sir Iain Lobban called the agency’s work a “mission of liberty, not erosion of it.”

The outgoing director of GCHQ has used his farewell speech to praise the UK surveillance agency’s practices. In the wake of Edward Snowden’s revelations, Sir Iain Lobban called the agency’s work a “mission of liberty, not erosion of it.”