China's planned national security law may prompt Taiwan to revoke the special status it extends to Hong Kong, President Tsai Ing-wen said, a move that could anger Beijing and make it harder for Hong Kongers to visit and invest. China is proposing the new legislation for the Chinese-ruled city after months of anti-government protests, and the decision has already ignited renewed unrest in Hong Kong and prompted condemnation from Western capitals. The demonstrators have won widespread sympathy in democratic Taiwan, and the support for the protesters by Tsai and her administration has worsened already poor ties between Taipei and Beijing.