Koppel joins NPR

Ted Koppel, who ended a quarter-century run on ABC News’ “Nightline” in November, is joining National Public Radio.

Starting in June, Koppel will provide commentary to NPR’s “Morning Edition” and “All Things Considered” as well as the new midday newsmagazine “Day to Day.” He also will serve as an analyst during breaking news and special events and contribute to the NPR Web site and the network’s podcasts.