Hong Kong democracy activist Joshua Wong is now charged under the national security law with conspiring with foreign forces, a charge that can carry life in prison — bad news for what remains of Hong Kong's political opposition.

• Wong faces a possible life sentence on the most serious charge available under the security law.
• Taiwan's presidential office called on Beijing to stop using national security as cover for crushing dissent and to free those held.
• Taipei says Beijing and the Hong Kong government have used the security law for years to pursue Wong and other activists without end.
• The case is framed as fresh proof that Hong Kong's courts and rule of law are being hollowed out.
• Taiwan warns the crackdown has become a cautionary example for other countries watching Beijing.

Outlook: Expect more international pressure over Wong's case, with little sign Beijing or Hong Kong will ease the prosecution.