The paper was called “The Nation’s Newspaper.” Critics called the satellite-transmitted, colorful, splashy, somewhat glitzy publication, “News McNuggets,” “The Nation’s Comic Book” and the winner of the “Pulitzer Prize for Best Investigative Paragraph.” “USA Today” — now with editions throughout the world — has changed the shape of newspapers everywhere. Many have imitated the fast-reading format pioneered by “USA Today” in an attempt to revitalize the suffering newspaper industry.