Along with Theodore Postol, Susli rejected claims that the Syrian government has used chemical weapons in 2017 at Khan Shaykhun. In a YouTube video, she referred to evidence posted by Postol, suggesting that Khan Shaykhun chemical attack, alleged to have killed 74 people, was not the work of the Assad government. While interviewing Seymour Hersh for "Prospect" magazine, Steve Bloomfield said that Postol "spoke about how he relies for his work on Syria on ... Susli". Hersh replied that "He talked to her "once" on one thing". In an article for Alex Jones' "InfoWars" website, Susli said the White Helmets, the first responder group, had been responsible for the Khan Shaykhun attack. Postol's reliance on Susli's reputed expertise has been found to be seriously flawed by Cheryl Rofer, a chemical weapons expert consulted by Bellingcat.