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Edward Snowden's father gave an interview to Fox News, telling his son, "We want you to come home."
"I believe firmly that you are a man of principle. I believe in your character. I don't know what you've seen, but I just ask that you measure what you're going to do and not release any more information," Lon Snowden said on Fox News.
Glenn Greenwald, the columnist with The Guardian newspaper has been breaking the stories of the vast surveillance carried out by the National Security Agency. He has stayed in close contact with Snowden.
Asked if his father's plea would have any effect, Greenwald said, "It won't."