While correcting the wrong claims in the Newsweek article, Higgins uses the opportunity to recycle his own shoddy analysis about the "persistence of sarin".
"Clearly"? - "Any claims"?? - Really???
bellingcat.com/news/mena/2018…
determining sarin persistence is complex, dependent on many conditions, especially temperature:
(GB = sarin)
rapporter.ffi.no/rapporter/2013…
@Mare_Indicum presents the best estimate:
bellingcat.com/news/mena/2017…
Bellingcat brags about analysing "open source information" - but regularly fails to do it properly!