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TSA "Explosive Detected" Graph/Printout...

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Old Oct 28, 2015 | 11:50 am
  #1  
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TSA "Explosive Detected" Graph/Printout...

Are these considered 'confidential'? or I guess in TSA speak 'SSI'.


Have looked through google images and never found one.
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Old Oct 28, 2015 | 11:57 am
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Originally Posted by Exec_Plat
Are these considered 'confidential'? or I guess in TSA speak 'SSI'.


Have looked through google images and never found one.
Not specifically TSA, but

Explosives detected:

Most of the sniffers have a long list of substances that they can detect, and they can be calibrated to several categories. heres a few of the explosives the sniffers detect:

RDX
PETN
TNT (Tri Nitro Toluene)
Semtex
Tetryl
Nitroglycerine (NG)
Nitrates
HMX
ANFO
http://snallabolaget.com/?page_id=3098
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Old Oct 28, 2015 | 4:31 pm
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Generally, they're looking for nitrogen-based substances... so if you happen to have stepped in doggie doo, walked in wet grass which had been fertilized recently, etc., you'll set it off.
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Old Oct 28, 2015 | 8:13 pm
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Just wondering if the graph I have is SSI or not....
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Old Oct 28, 2015 | 8:19 pm
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Originally Posted by KRSW
Generally, they're looking for nitrogen-based substances... so if you happen to have stepped in doggie doo, walked in wet grass which had been fertilized recently, etc., you'll set it off.
Products with glycerins are known to alarm. I don't know if they are nitrogen based or not. We also know that items with hydrogen peroxide will alarm the TSA's ETD testers.

The problem is that these devices cannot discriminate between a hand lotion or an explosive.

TSA's ETD testers are near worthless when they give more false alarms than actual hits on threat items.

Perhaps we should use the same criteria for TSA overall.
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Old Oct 28, 2015 | 9:00 pm
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Originally Posted by Exec_Plat
Just wondering if the graph I have is SSI or not....
Unless you're an employee of DHS, SSI doesn't apply to you.
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Old Oct 28, 2015 | 9:07 pm
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Originally Posted by Boggie Dog
The problem is that these devices cannot discriminate between a hand lotion or an explosive.
Which is odd because unless DHS has bought bottom of the barrel machines they certainly can discriminate across those things. I suspect the machines have been set up to trigger on the most general of nitrate and phosphate spikes. Doing that would reduce the need for operator training/capability and also (if you were being really cheap and cynical) servicing of the machines themselves.
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Old Oct 28, 2015 | 10:26 pm
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Originally Posted by Boggie Dog
Products with glycerins are known to alarm. I don't know if they are nitrogen based or not. We also know that items with hydrogen peroxide will alarm the TSA's ETD testers.
Glycerin contains no nitrogen. It's propane where one hydrogen on each carbon atom is replaced with an -OH.

I do understand the problem with fertilizer, though. Ammonium nitrate is fertilizer. It's also high explosive, although stable enough that you need to use another explosive charge, not merely a blasting cap, to set it off.
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Old Oct 29, 2015 | 12:13 am
  #9  
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Originally Posted by SeriouslyLost
Unless you're an employee of DHS, SSI doesn't apply to you.
Actually, SSI applies to "covered persons" which includes many non-government employees such as airline employees or contractors who have access to SSI. You don't have to be an employee of DHS to be a covered person.
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Old Oct 29, 2015 | 12:33 am
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Originally Posted by Boggie Dog
Products with glycerins are known to alarm.
Which applies to (solid) deo roll-on, too. Had to re-run security in MAN over that ("put that into the liquids bag").
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