Robert Krulwich is an American broadcast journalist correspondent who appears regularly on “Nightline.” He also reports for “World News with Charles Gibson,” and “Good Morning America.”
Krulwich is also a regular correspondent on the PBS investigative series, Frontline, where he won a duPont Award from Columbia University for his coverage of campaign finance in the 1992 presidential campaign, a national Emmy Award for his investigation of privacy on the Internet, High Stakes in Cyberspace; and a George Polk Award for an hour on the savings and loan scandal.
Source - http://abcnews.go.com/WNT/story?id=127128