Journalism is important to the world because we are now a global economy and almost a gloabl society. We really do need to know what is happening around the world, because little events thousands of miles away in places we have never heard of can have a ripple effect. I think that the earthquake in Japan and the unrest in the Middle East, as well as Greece's financial woes, demonstrate the impact events in other places have on us.
In the year of the presidential election, Barrack Obama appeared on the cover of Time magazine 23 times.
Whenever Napoleon conquered a country in his quest for a great empire, the first thing he dictated was that the newspapers all be put under his control. In the United States, William Randolph Hearst, publishing magnate, owned no less than 28 major newspapers and 18 magazines. In 1927, his newspapers printed forged, unchecked documents; he was an unabashed practitioner of what has come to be known as "yellow journalism." By means of this yellow journalism, Hearst created the atmosphere for the Spanish-American War from which he profited.
Journalism is important to report what happens; yet by the same token, it carries a dangerous political importance at times as it also can help to create situations.
Politically, journalism is very important. We can see this in the impact that Al Jazeera had in the Tunisian rebellion that happened recently. (And in the impact of news media in general in the current unrest in Egypt.) When there is no journalism, things like the Tunisian guy burning himself in protest aren't widely known in a country or in the world. If that happens, they don't cause any sort of reaction. But when journalism exists, such incidents can come to the attention of broader publics and can cause things like what happened in Tunisia.
This question is highly open to opinion, and if it was asked in class, I assume your teacher would like to hear your opinion. In order to answer it honestly, it is important to understand exactly what journalism is. Journalism is the art of conveying news, opinions, and stories through a wide variety of media. This can include of course, newspapers, magazines, and television. More recently, journalism has come to also include Internet media such as blogs, Internet articles or ezines, and other web media.
In my opinion, journalism is important to the world because it is current and relevent. This is also what makes it entertaining. People tune in to the news (whether on TV, the radio, newspaper, or Internet) because they want to see what is going on in the world. Journalism is responsible for the spreading of current ideas. Additionally, journalism is an important way to view the past. By re-reading old articles, or reviewing archived news clips from different points in history, we have the ability to see how the public reacted to an event at the time it was happening.