starglider29a writes "Yesterday, a website I maintain that has a Twitter presence encountered an 'unsafe' warning when clicking on the tweets. 'This link has been flagged as potentially harmful.' After scanning the site and its database, then checking with Google and third-party site scanners, I found no evidence of harm. At noon, The Atlantic posted an article which describes the same issue with the Philadelphia City Paper. 'Perhaps most frustrating of all is that Twitter has not been particularly responsive to the paper's plight.' If the warnings are incorrect, how does Twitter justify this libel?"