'Let's learn about national security': Hong Kong rewrites school rules

Animation features an owl teaching young children about the need for the controversial law in crackdown on education

Hong Kong students as young as six will be taught about the national security law under a dramatic overhaul of the education curriculum.

Notices sent out on Thursday require schools to prevent participation in political activities, increase monitoring of employees and teaching materials, remove books and flyers deemed to endanger national security, and to report to authorities if necessary.