https://www.reuters.com/article/australia-defamation/a-cowards-palace-australian-pm-slams-social-media-amid-defamation-law-controversy-idUSKBN2GX02E >SYDNEY (Reuters) -Australia's prime minister on Thursday lambasted social media as "a coward's palace", saying platforms should be treated as publishers when unidentified defamatory comments are posted, pouring fuel on a raging debate over the country's libel laws.