The US Secretary of State Hilary Clinton appearing at a senate hearing defended her handling of the September 11, 2012 attack on the U.S. mission in Benghazi that killed four Americans.

Mrs Clinton then became emotional describing the impact of the deaths both on her and the wider world.

But the attack could haunt Clinton - who is expected to step down in the coming days once her designated successor, Senator John Kerry, is confirmed by the U.S. Senate - should she decide to run again for president in 2016, a possibility she has played down.

Written and presented by Ann Salter