Arrest of ‘Stubborn About Justice’ Cardinal Zen Divides Hong Kong’s Catholics

HONG KONG—Using an umbrella as his cane, 90-year-old Cardinal Joseph Zen walked into a courtroom Wednesday to sit in on a pretrial hearing for activists facing national-security charges. A thorn in Beijing’s side for decades, the pro-democracy firebrand still commits his days to supporting fellow activists even as his body grows frail.

Soon after, police arrested Cardinal Zen and four others over allegations they had conspired to collude with foreign forces to endanger China’s national security.