Protecting Trump: Ex-FBI agent on security at White House Correspondents' Dinner

US President Donald Trump and other top officials had to be evacuated from the White House Correspondents' Dinner on Saturday after a man tried to break in with guns. We speak to Richard Kolko, a former FBI supervisory special agent, as well as the Guardian's Washington bureau chief David Smith, who was at the dinner, and FRANCE 24's International Affairs Commentator Douglas Herbert.