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In March 2009, North Korea announced that it had arrested two American journalists for illegally crossing into the country and attempting to film refugees crossing into China.
At first the identities of the two women were not known, but three months later it was officially announced that the two Americans were Laura Ling and Euna Lee.
The pair were working for American television network, "Current TV" at the time of their arrest and argued that they never intended to cross into North Korea and that it was all a mistake.
However, in June of last year, the pair were sentenced to 12 years of hard labor in a North Korea prison camp.
While the pair were imprisoned, there was strong pressure by the U.S. government to argue for their release.
At the center of the campaign was Laura Ling's sister, Lisa.
The former "View" chat show host and freelance journalist, Ling led the charge to help see the release of her sister and friend.
Lisa Ling worked closely with former U.S. President Bill Clinton and after an unannounced visit by the statesman in August of 2009, North Korea released Laura Ling and Euna Lee.
Today, Laura and Lisa Ling are about to release a new book titled "Somewhere Inside: One Sister's Captivity in North Korea and the Other's Fight to Bring Her Home" which hits stores on May 18.