Reuters Mass arrests in Hong Kong and independent journalists imprisoned in Vietnam A website dedicated to publishing first-hand accounts of the Hong Kong pro-democracy movement has warned its users to prepare for large-scale internet blocks, filters, and censorship in future, in the first indication that China may be exporting its Great Firewall to the city under a draconian national security law that took effect on July 1. The HKChronicles website started receiving reports from users based in Hong Kong that they were no longer able to access the site late on Jan. 6, the site's founder and chief editor Naomi Chan said in a statement.