WikiLeaks founder Julian Assange may appeal an extradition order to the U.S., the U.K. High Court ruled on Monday. The 52-year-old Assange faces 17 charges of espionage and one charge of computer misuse due to WikiLeaks‘ publication of classified U.S. documents nearly 15 years ago. He has spent the last five years fighting extradition in London’s high-security Belmarsh Prison. “The High Court’s…