(U//FOUO) DHS Warning on Pressure Cooker IEDs


  • 2 pages
  • For Official Use Only
  • July 1, 2010


(U) Pressure Cookers as IED Components

(U//FOUO) Rudimentary improvised explosive devices (IEDs) using pressure cookers to contain the initiator, switch, and explosive charge (typically ammonium nitrate or RDX) frequently have been used in Afghanistan, India, Nepal, and Pakistan. Pressure cookers are common in these countries, and their presence probably would not seem out of place or suspicious to passersby or authorities. Because they are less common in the United States, the presence of a pressure cooker in an unusual location such as a building lobby or busy street corner should be treated as suspicious.

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4 comments for “(U//FOUO) DHS Warning on Pressure Cooker IEDs

  1. Denise E Knight
    April 16, 2013 at 9:35 pm

    So much for the warning! All the infringement on United States citizen’s freedom and liberty in the name of “Homeland Security”, certainly didn’t save any of the victims of the Boston Bombing, nor will it save anyone from those who are determined to commit evil acts. I have shared this page with facebook and our local talk radio station. Thanks!

  2. Big M
    April 21, 2013 at 5:34 pm

    That press photo of a “pressure cooker” is either a fraud, or you’re dealing with a professional here. How come there’s only one hole in the piece in the photo? If the “pressure cooker” was full of nails and ball bearings, and there was no shaped charge, then that piece would be FULL of holes. These people need some new writers; the script is old and stale.

  3. robertsgt40
    April 23, 2013 at 7:37 pm

    Time for background checks on pressure cookers. There, fixed it.

  4. B. Gordon
    April 24, 2013 at 10:59 pm

    Big M, Apparently you are not familiar with how an Pressure Cooker IED, powered by Fireworks Powder, explodes. This is a very SLOW burning Energetic Material, and it is a NOT Detonating, but Deflagrating, type of explosion. Basically it explodes, by over-pressuring the containment, (Pressure Cooker) and then spreading the burning Material, by the inherent pressure released by the containment failure. There is little or no Detonation Shockwave, produced in this type of device, and most of the damage is done by the objects, placed in the Material, as shrapnel. These Objects are scattered at relatively SLOW Speeds, when compared to a High Explosive Energetic powered Device, where the Detonation Velocity is well above the speed of sound. The reason there all “No Holes in the Pressure Cooker” is simply that the Material Inside can’t move until the Pressure Cooker containment Fails, at which time it is no linger in the way of the slow moving Objects, that become the Shrapnel. It would be nice if you actually Knew something about the subject, before you publish your Blather…. Just Say’en….. YMMV…

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