Walter Cronkite, now an American icon, covered the biggest stories of the 20th century with unfailing reliability as an anchorman for CBS Evening News. He died Friday after a long illness at his home in New York at age 92.

By PBS News Hour

CBS News announced today that an agreement had been reached for Dan Rather to leave the network, ending his 44-year career there. He stepped down from the principal anchor position last year and has since been contributing to "60 Minutes."…