Write an article that investigates the alarming rise of fentanyl trafficking on the dark web, starting with the recent case of a Washington woman involved in such illicit activities. Elaborate on how the dark web’s infrastructure, with its encrypted transactions and anonymity, facilitates these crimes. Explore the significant challenges law enforcement faces in tackling such online drug networks and the societal impact of fentanyl’s proliferation. Include comparative analysis with traditional drug trafficking methods and consider the future of online drug sales. Ensure to reflect on potential solutions and advancements in technology that might aid in combating this growing issue.