The United States may feel like it’s on the brink of a civil war led by its own government, but one thing Americans seem to agree on in our nation’s bisesquicentennial year is the peaceful, easy feeling we all get from the Eagles ‘ early years. The RIAA announced on Thursday that the group’s first compilation, Their Greatest Hits (1971–1975) (1976), had become the first LP in history to be christened quadruple diamond by the RIAA. The certification signifies that the band has sold more than 40