In 2019, the Princeton based journal "Science &amp; Global Security", on whose editorial board Postol sat, intended to publish a report titled "Computational Forensic Analysis for the Chemical Weapons Attack at Khan Sheikhoun on 4 April 2017" about the Khan Shaykhun chemical attack written by Postol, Goong Chen, Cong Gu, Alexey Sergeev, Sanyang Liu, Pengfei Yao and Marlan O. Scully. The report questioned the findings of the OPCW investigation which concluded that the Assad regime had used sarin. The website "Bellingcat" disagreed with the report's interpretation and stated there were many caveats in the reports analysis. According to "Bellingcat", the report's use of simulation was methodologically flawed, as the paper only provided a simulation of a 122mm type rocket, and did not attempt to study other possible options. In response to the "Bellingcat" article, the editors of "Science &amp; Global Security" said "Regrettably, the "Bellingcat" group blog post contains a number of incorrect statements about the contents and conclusions of the paper to be published. Some of the statements appear to refer to an earlier manuscript and do not take account of all the changes made during the peer review and editorial process managed by this journal". The journal later decided not to publish the paper after it "identified a number of issues with the peer-review and revision process".