More than 50 opposition activists have been arrested in Hong Kong, including Benny Tai. The 56-year-old former law professor is one of Hong Kong’s best-known democracy campaigners. Hundreds of police poured out last Monday in a coordinated effort to arrest 52 members of the democracy movement in the largest wave of arrests since the National Security Law was introduced. The security authorities were particularly targeting Tai, who they interpreted as the mastermind of an operation that allegedly threatened national security.