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Boston Marathon Tragedy: Bombs May Have Been Pressure Cookers Hidden In Backpacks

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The Boston Marathon tragedy has left many in distress, 176 wounded and 3 dead, and with more details beginning to unravel, investigators now think that the bombs were 6-liter pressure cookers hidden in backpacks.

According to reports, one of the bombs contained metal and ball bearings, while another was jam packed with nails.

Law enforcement officials are saying that the explosives were dubbed as low, which means they traveled under 3,300 feet per second and were not strong enough to create a blast wave, but were strong enough to blast the ammo from long distance.

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