The Food and Drug Administration (FDA) in their report U.S. Food and Drug Administration and the International Mail Facilities (IMFs), describes the daunting job that Customs and Border Protection (CBP) faces when attempting to weed out counterfeit medications and packages containing illicit fentanyl. In 2017, IMFs received 275 million packages. Of these, 10,000 were screened by CBP, and of those 86% contained drugs. The investigation of a suspect package is incredibly time-consuming; an experienced FDA investigator might take as long as 20 minutes to process a package containing just on product.