A frustrated Hillary Clinton responded angrily to Republican senator Ron Johnson's questioning about the release of information following the Benghazi attacks.
"What difference does it make?" a clearly exasperated Clinton told the senator, insisting that her focus should be on bringing the militants to justice.
More top news
You can't say the 130 Brexit Tory MPs who forced Cameron to have this referendum haven't had an impact on political life, writes Chris Ship.
Foreign Secretary Philip Hammond said there will have to be a "trade-off" on access to the EU single market and migration controls.
A man arrested on suspicion of murdering Melanie Hall 20 years ago has been released on police bail. She disappeared in Bath in 1996.