Hong Kong cracks down on online dissent over national security law
• Hong Kong's justice minister warned that sharing criticism of the new national security law online could violate the law
• The law includes harsh penalties for sedition, including inciting hatred against Hong Kong or China's governments
• Nearly 300 people have been arrested under the 2020 Beijing security law, dozens for online posts
• Critics say the laws have weakened Hong Kong's opposition and civil society
• Authorities say the new law is needed to supplement the 2020 law and fulfill constitutional responsibilities