One thing I remember brightly about my childhood was that every time there was an ETA terrorist attack, the teletext was the only known place to get &quot;rolling&quot; updates about the details: With radio and TV you are up to the broadcaster to get more details, and usually only the last update. While with the teletext you could get both the overall information and the last updates all in a single place.
Nowadays when something like this happens people turn to Twitter, either from a known source (newspaper) or from eye witnesses.