Add a feature for live breaking news updates

Hi everyone, In the last few days, I've been following various news outlets for breaking news updates as events unfold - and they usually have a similar format, with updates being added as information comes out. I imagine that this sort of coverage poses some unique challenges, and I wanted to ask about how journalists address these in real-time, stressful situations: 1. When a live news event starts, like the outbreak of war, what's the structure like within an organisation reporting on it? Is the person writing the updates usually someone on-the-ground, or is coverage dictated from a newsroom somewhere else? Who's involved in that process? (I'm sure there's differences and freelancers probably operate their own way, but in particular I'm wondering about reporters for a bigger organisation like the Associated Press or Reuters). 2. When a big, chaotic event happens, there's a lot going on in the moment - how do reporters determine what information gets published, and what's held back? What's the criteria for something to make the cut? 3. Similarly, how do reporters deal with claims or information that might be important, but can't be verified in the moment? At what point is something important enough that it should be published, even if there needs to be a disclaimer in case it's false? 4. Reading recent coverage, a lot of breaking news updates cite anonymous sources, usually unauthorised. How do you find these sources? Are they usually willing to talk, especially in such critical scenarios? I really appreciate the work that journalists are doing right now, and have continued to do. Thank you for taking the time to read/answer my questions.