In the early days of newspapers, when newspapers were the primary method of delivering the news, when something big happened, the publisher would not only publish the normal daily paper, but would publish an Extra. The newspapers were sold on the street, often by newsboys, who had a stack of papers and would sell them to passersby. When an extra came out, they would chant, "Extra! Extra! Read all about it!" to call attention to the fact that something big had happened, and an Extra paper has been published.
You won't find any newsboys selling papers but you will find a quick magnetic park and grab.