A couple new additions at ABC’s “World News with Diane Sawyer.” Claire Brinberg joins as senior producer. Brinberg, who most recently worked with Christiane Amanpour on “This Week,” joined ABC from CNN in 2010 where she worked with Anderson Cooper, Judy Woodruff and Campbell Brown. Also, Mary Harris has been named senior producer overseeing special projects and series. Harris, who previously worked on “World News” and “Good Morning America” recently worked at WNYC radio in New York where she launched “The Takeaway.”