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False alarm - No Sarin was found.

https://abc7news.com/facebook-gives-all ... k/5373511/

Jago668 wrote: ↑Mon Jul 01, 2019 4:03 pm

philip964 wrote: ↑Mon Jul 01, 2019 3:58 pm

03Lightningrocks wrote: ↑Mon Jul 01, 2019 3:39 pm The article says it showed positive once and negative once. My bet is that it is a false alarm. I was surprised to learn they have a machine that monitors for these things.

I remember the security at Enron back in the day. Lunch time pizza delivery guys pizza box went through X-ray.

But yeah how do you detect for Sarin. I thought it was a gas anyway.

A quick search says it's actually a liquid. How effective it is by touching paper soaked in it I don't know. As to testing positive and then negative. Comedian Jeff Dunham joked that he set off the machine at an airport for plastic explosives once with hand lotion.

Liquids have a vapor pressure so the gas they give off [vapor] can be detected.
There are also instruments that will detect gases given off by explosives and other organic compounds.
When analyzing low levels of compounds false positives can be common.
My sister worked for a company in Silicon Valley that developed these types of instruments for rapidly screening packages such as luggage at an airport.
Knowing the personality of the FB CEO, I would think that they have the best instruments available.