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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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February 19, 2026 - PBS News Hour full episode
57:46
Season 2026 Episode 40
February 19, 2026 - PBS News Hour full episode
February 19, 2026 - PBS News Hour full episode
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Season 2026 Episode 39
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February 18, 2026 - PBS News Hour full episode
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Season 2026 Episode 38
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February 17, 2026 - PBS News Hour full episode
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Season 2026 Episode 37
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February 16, 2026 - PBS News Hour full episode
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Season 2026 Episode 36
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February 13, 2026 - PBS News Hour full episode
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Season 2026 Episode 35
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February 12, 2026 - PBS News Hour full episode
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Season 2026 Episode 34
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February 11, 2026 - PBS News Hour full episode
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Season 2026 Episode 33
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February 10, 2026 - PBS News Hour full episode
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Season 2026 Episode 32
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Season 2026 Episode 31
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February 6, 2026 - PBS News Hour full episode
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Season 2026 Episode 30
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February 5, 2026 - PBS News Hour full episode
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Season 2026 Episode 29
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