YouTube is outpacing its social media rivals when it comes to curbing the spread of misinformation during breaking news events, while Facebook and Twitter are still struggling. From this week’s bomb scares to news of a migrant caravan slowly making its way toward the U.S., misinformation and hoaxes have run rampant on most social media platforms. Facebook and Twitter have stumbled in the past to keep their platforms from being a clearinghouse for quickly disseminating unsubstantiated stories and armchair conspiracy theories that rapidly snowball in digital communities. But in the wake of major breaking news events this week, YouTube appears...