A video essay about control rooms in film and television since the 1970s. Computers, screen interfaces, and the rooms they are in are connected to the political context of a particular era. Always-on control room technologies result in a security and political crisis that is permanent, so potential threats in popular screen narratives come from sources that are imagined to be permanent, such as 'terrorism' and 'cyberattack'. For the full essay, see culturemachine.net/index.php/cm/article/view/590/597 Co-edited by Cormac Deane and Stephen Hughes. Narrated by Gerard McHugh.