Hong Kong marked the first National Security Education Day since the new national security law was implemented, with a one-day public event where police forces showcased 'Chinese-style of marching.' CNN's Kristie Lu Stout reports.
Hong Kong marked the first National Security Education Day since the new national security law was implemented, with a one-day public event where police forces showcased 'Chinese-style of marching.' CNN's Kristie Lu Stout reports.
