The local news is where the event took place. For example, the local news coverage for the Columbine school shooting that occurred in 1999 will be Columbine, CO. National news for the event can be any other news coverage that covered the event in the USA including Miami, and the global news will be any country outside of the USA regardless of the native language of the country that covered the event, including Canada, UK, Spain, etc.
Was there a difference with media coverage about your topic in other parts of the world?
Were the reactions from media consumers varied in other parts of the world?
Did different movements happen in other parts of the world based on the topic/event?
What were the similarities?
What were the differences?