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PBS News Hour

Understanding the Bombs Used at the Boston Marathon

NewsHour science correspondent Miles O'Brien visits the nation's most active explosives testing facility in New Mexico to learn more about what makes a pressure cooker bomb -- like those used at the Boston Marathon -- tick. Investigators often use the center to test theories and find new ways to defend against future attacks.
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April 27, 2025 - PBS News Weekend full episode
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Season 2025 Episode 117
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