In June 2011, the BBC announced Eliza Manningham-Buller would present the 2011 Reith Lectures, alongside the Burmese pro-democracy leader Aung San Suu Kyi in a series entitled Securing Freedom. Eliza Manningham-Buller's lectures broadcast on BBC Radio 4 and the BBC world service in September 2011, marked the ten-year anniversary of the September 11 attacks on the United States.