911 Dispatchers

Why do 911 dispatchers show up at news conferences? I don't understand it. I suppose it's a human interest story like this morning when they showed the dispatcher who took the kid's call for a break in. But, I saw that they had interviewed the dispatcher for the California runaway Prius.

Why? Is it really necessary? I don't get any additional information from these people. Does the press request that the dispatcher's show up? How about answering the question as to why they've not caught the perpetrators. I bet that they don't catch them.