https://www.reuters.com/article/us-facebook-results/facebook-sales-grow-as-users-tick-up-zuckerberg-defends-political-ads-idUSKBN1X92H6 >Facebook Inc reported an uptick in users in lucrative markets and its third-straight rise in quarterly sales growth on Wednesday, but the company's controversial political ads stole the limelight when CEO Mark Zuckerberg spoke to analysts.