A series of sackings and appointments - with rumours of more to come - has created a sense of deep uncertainty around the US intelligence and national security community. Some believe this is part of an attempt by Trump to hold on to power; many others see it driven by a desire for personal revenge. But there remain fears that the uncertainty of a divisive transition could hold real dangers. The sacking of a number of top civilian leaders at the Pentagon, including the secretary of defence, was, many believe, just the start. Trump wants to achieve specific policy goals during his final days, like removing troops from Afghanistan. America's national security is accused of being in a ‘deep state’ of conspiring against him. In recent months, he has declassified information which he wrongly thinks supports his case. The head of cybersecurity is in trouble because he proved vote rigging was false.