The content originally appeared on: CNN The activists staged a brief protest at the Acropolis in the Greek capital early in the morning, holding up a Tibetan flag and a banner reading 'Free Hong Kong - Revolution' at a scaffolding surrounding part of the monument. The activists detained were 18-year-old Tibetan student Tsela Zoksang and 22-year-old Joey Siu, a US citizen exiled from Hong Kong. The protest was made hours before a dress rehearsal in Greece's Olympia, site of the […]