Complex sentence: In 2001, Link was detained and questioned upon arriving in Hong Kong because of his involvement in the Tiananmen Papers, after roughly one hour was allowed to freely enter Hong Kong where he spoke at the Hong Kong Foreign Correspondents Club.
Split into simpler sentences: In 2001, Link was detained and questioned upon arriving in Hong Kong because of his involvement in the "Tiananmen Papers". After roughly one hour, he was allowed to enter Hong Kong where he spoke at the Hong Kong Foreign Correspondents Club.