nature of commercial networks has allowed for pundits to develop their skills and dedicate themselves to respond to breaking news with analysis in a variety of fields, most often political. These talking heads can be paid millions to work exclusively for a network. In the United Kingdom, TV talking heads are sometimes considered filler who talk around the subject. They are not full-time employees of networks and are not always paid – when they are it is a flat fee for the slot – and will be urgently called in to discuss the relevant field (in which they will typically work full-time). Pundits in the UK have said that they do it because they deem it important to get expert coverage of breaking news, and because it can put their field (and themselves) in the spotlight. Research has suggested that talking heads in the United States are more likely to be partial than talking heads in the United Kingdom. In 2015, the Financial Times suggested that with modern technological developments broadening news coverage, and with networks opting to show "livelier" non-expert comments from social media more, the need for talking heads may be shrinking. Radio On radio, the process of a breaking news story is somewhat the same, though some different considerations are made for the medium. For instance, a breaking news theme is required by default to have an urgent tenor and be used only for the purpose of true breaking news or bulletins. This is obvious on the local all-news radio stations owned by Audacy (formerly owned by CBS Radio), which very rarely use a breaking news theme for all but the most urgent and dire of breaking news, and is purposefully structured to give a sense of attention for the listener, almost sounding like an alarm. For local events, continuous coverage may be imposed, or else the station may wait until they have a reporter at the scene and will promise more details of the event as they become available. National news that is broadcast over a radio network requires constant monitoring by station employees to allow the network coverage to air, although many stations will take the 'urgent' signal sent by the network (often sent within the digital stream of the network and inaudible to the listener, like ratings identifications) and break into programming immediately. Again, continuous coverage from a national radio network depends on the