MEXICO CITY—Authorities said Thursday the massacre of 20 townspeople in southern Mexico appears to have been the work of a drug lord who used social media to try to blame a rival gang. The new revelations illustrate how Mexican drug cartels are increasingly using social media to apportion blame for attacks and mislead authorities and…

Senior Tory peers have branded compulsory behavioural training for members of the Lords an “expensive farce.” The anti-bullying, discrimination, and sexual harassment workshops were also condemned as a “complete waste of time” and “patronising.” The comments came after it was reported that 60 peers had fallen foul of the Lords authorities because they had not…