Preview: Season 2011 Episode 10 | 30s
FRONTLINE examines the biggest intelligence breach in U.S. history and the two men behind the leaks: WikiLeaks founder and Internet activist Julian Assange and the Army intelligence analyst Bradley E. Manning. Through in-depth interviews with Manning's father, Assange and others close to the case, veteran FRONTLINE correspondent Martin Smith tells the full story behind the leaks.
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