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The World's Highest Security Prison: CECOT (The most evil are kept here)
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Behind Bars: NECC Missouri, USA | World’s Toughest Prisons | Free Documentary
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Inside Japan’s Prisons: The Most Ruthless Prison System | Free Documentary
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Japan Behind Bars: What is Life in Prison? | Investigate Asia
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Behind Bars: Osaka Prison, Japan | World’s Toughest Prisons | Free Documentary
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RUSSIA'S ALCATRAZ - The toughest prison on Fire Island | Full Documentary
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Life In Singapore Women’s Prison | Inside The Women's Prison - Part 1/3 | CNA Documentary