Twitter Inc. said it suspended all advertising in Russia and Ukraine, seeking to ensure that promotional posts don’t detract from public safety information sent via the social network. The San Francisco-based company won’t show advertising in those markets, and also will curb tweet recommendations that appear in users’ timelines from accounts that they don’t already follow in an effort to limit the spread of misleading and abusive content. Russia launched a full-scale invasion of Ukraine early on Thursday, attacking from the north, east and south of the country. Russian troops are shelling Ukrainian cities, aiming to ... (full story)