In June 2017, the German newspaper "Die Welt" published an article by Seymour Hersh in which he said the attack by the Syrian government at Khan Shaykhun in April 2017 did not involve sarin and that US intelligence knew this. Hersh wrote that his sources said the attack struck a building which housed "fertilisers, disinfectants and other goods". Media Lens tweeted that their search of a newspaper database showed no mention of Hersh’s report. In June 2017, journalist Brian Whitaker criticised Media Lens for being unconcerned that Hersh had not provided the sources for his story. Whitaker wrote that Media Lens had previously criticised "The Guardian" for quoting "unnamed American officials" in a story about Iraq.