This has been one of many bugbears of mine for a good while now. Pretty much all the major (non-print) media outlets tend to be at it, in the sense of displaying the 'Breaking News' caption while discussing the topic concerned, even if it's more than 1 hour after the story first broke, which I would regard as an acceptable threshold of tolerance to constitute the term.
Last night I went onto YouTube's homepage and they often have a 'Breaking News' subsection about a fifth or so down the page, and last night for example, it was discussing defective school buildings that first started being discussed elsewhere around Wednesday (30th August). So in that particular case it's hardly 'Breaking News' anymore but more 'Current News'.
Likewise I feel that the word 'crisis' has been vastly overused in on-screen text on news channels over the past 20-odd years or so, which in turn tends to cheapen said term and lessen its true impact to the point where many people just become blase about it (and the aforementioned term 'Breaking News').
All in all, typical cases of hyperbole and 'pushing everything to the max' IMO. What do others on here think?