Hong Kong becomes latest place to face book-ban debate

History is being taken down from Hong Kong bookshelves.

A new investigation by the Chinese-language newspaper Ming Pao found that 40% of political books have been removed from Hong Kong's libraries in the last two years, with worries that dozens more will follow.

The report comes nearly three years after Beijing imposed the controversial National Security Law on the city — legislation that curtailed free speech rights in Hong Kong, which previously enjoyed freedoms not seen in mainland China under the rules negotiated on its return to Beijing from British rule.