Final answer:
The media's role in broadcasting acute stress following traumatic events and the impact of TV coverage on Americans' views on U.S. involvement in the war were discussed in Celis' UCLA lecture.
Step-by-step explanation:
In Celis' UCLA lecture, broadcasters said that the media's role in broadcasting acute stress following an event like the Boston Marathon bombings can have a significant impact on individuals and society as a whole. The study conducted by Holman, Garfin, and Silver (2013) found that media coverage of traumatic events can contribute to increased stress levels among viewers. Additionally, the clip of Don Hewitt, a producer at CBS, discusses how TV coverage of the war impacted Americans' views on U.S. involvement.