Director of the Liaison Office of the Central People's Government in Hong Kong Wang Zhimin reportedly asserted on 2019-5-16, "The Fugitive Offenders Ordinance (Amendment) involves struggles between major countries, and the real target is anti-China forces in the West, e.g., USA's anti-China force uses Hong Kong as a sort of chessman in the US-China Trade War (topick hket com, 2019-5-17). On May 16, Wang called around 200 HK members of National People's Congress and National People's Political Consultative Conference, and lectured to them about the Extradition Law.
The statement is alarming for it implies that China may transfer American citizens from Hong Kong to China as political hostages just as it has done so to two Canadian citizens. It seems that China is challenging the United States to issue an advisory warning Americans against traveling to Hong Kong and to cancel the Hong Kong Policy Act.