https://www.cnet.com/news/sites-hosting-mosque-shooting-video-blocked-in-australia-telstra-vodafone-optus/

"We understand this may cause inconvenience for some legitimate users of these sites but these are extraordinary circumstances and they required an extraordinary response," said Nikos Katinakis, Telstra group executive of Networks and IT. 

"We appreciate that it is necessary to ensure free speech is carefully balanced against protecting the community, but with these sites continuing to host disturbing content we feel it is the right thing to do to block them."