The BBC has called the ongoing controversy over a documentary on Gaza a "really, really bad moment", admitting the film's failings are "a dagger to the heart" of the corporation's impartiality. Gaza: How To Survive A Warzone was pulled from iPlayer and will not be broadcast on channels again after it emerged that the child narrator is the son of Ayman Alyazouri, who has worked as Hamas's deputy minister of agriculture. Last week, Culture Secretary Lisa Nandy called an "urgent meeting" with the corporation over the film. BBC director-general Tim Davie and BBC chairman Samir Shah were questioned by MPs...