<P> The World Health Organization sub-department, the International Agency for Research on Cancer (IARC), has been criticized for the way it analyses the tendency of certain substances and activities to cause cancer and for having a politically motivated bias when it selects studies for its analysis . Ed Yong, a British science journalist, has criticized the agency and its "confusing" category system for misleading the public . Marcel Kuntz, a French director of research at the French National Centre for Scientific Research, criticized the agency for its classification of potentially carcinogenic substances . He claimed that this classification did not take into account the extent of exposure: for example, red meat is qualified as probably carcinogenic, but the quantity of consumed red meat at which it could become dangerous is not specified . </P> <P> Controversies have erupted multiple times when the IARC has classified many things as Class 2a (probable carcinogens), including cell phone signals, glyphosate, drinking hot beverages, and working as a barber . </P> <P> Political pressure from China has led to Taiwan being barred from membership of the WHO and other UN-affiliated organizations, and in both 2017 and 2018 the WHO refused to allow Taiwanese delegates to attend the WHO annual assembly . On multiple occasions Taiwanese journalists have been denied access to report on the assembly . </P> <P> In May 2018, 172 members of the United States House of Representatives wrote to the Director General of the World Health Organization to argue for Taiwan's inclusion as an observer at the WHA . </P>

He world health organization has defined a community as