Bill Weir

Bill Weir is the co-anchor of the weekend edition of "Good Morning America" and his reporting is seen on "World News with Charles Gibson," "Nightline" and "20/20."

Bill Weir is the co-anchor of the weekend edition of "Good Morning America" and his reporting is seen on "World News With Charles Gibson," "Nightline" and "20/20."

(ABC)

Since joining ABC News in 2004, Weir has traveled the planet to cover breaking news and uncover global trends. His in-depth reports on the economic rise of China and India were signature features on "Good Morning America," while "World News" devoted extraordinary air time to his storytelling from Africa, the Middle East and the South Pacific.

He was among the first reporters on the scene after Hurricane Katrina ravaged New Orleans, anchored breaking developments from London after the train and bus bombings of 2005 and led the network's coverage of "Iraq, Where Things Stand" in 2008.

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Weir has anchored several launches and landings of the space shuttle, was the first American to broadcast live from Tibet and led off 2007's Earth Day special with an unprecedented underwater live report from the Great Barrier Reef.

Domestically, Weir's reporting often focuses on innovative solutions to America's biggest problems, from border security and new energy to health care and education reform.

In June 2007, Weir was named host of the ABC News magazine "iCaught," and as a writer and host, he produced special hours for the network, including "Hell: The Fear and Fascination," which examined the intersection of emotion and religion, and "Happiness," an investigation into the field of positive psychology.