Authorities in Southern California are bracing for the possibility that a volatile chemical tank could either rupture or explode as an unprecedented hazmat crisis is underway that has forced an estimated 40,000 people from their homes. NBC News’ Steve Patterson reports.
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During breaking news events, current non-news programming is interrupted for live coverage and analysis about the event at hand. This is similar to what would occur on a national network newscast, but typically has a different opening graphic and music cue to indicate the importance of the story being reported. The network may also provide its affiliates with a countdown sequence to give them time to switch to the news feed and insert their own station identification. This type of report is often known as a “Newsflash” or a “Special report.” It is in contrast to lower thirds and alert crawls, which are used for specific weather events or emergency warnings that require immediate attention.
