Former President Barack Obama confronted social media companies for spreading misinformation in a formal address at Stanford, warning of the real-world consequences of disinformation and fringe conspiracy theories. Obama argued the tech industry can play a more constructive role and singled out dangerous, dishonest actors, like Vladimir Putin and former Trump aide Steve Bannon, in unusually direct remarks. MSNBC’s Ari Melber reports on the address and examples of disinformation being amplified online, noting that while conspiracies always existed, for-profit companies are spreading them far more than before. Melber also distinguishes between the “information victims" who believe these lies, and those who pedal them. » Subscribe to MSNBC: http://on.msnbc.com/SubscribeTomsnbc About: MSNBC is the premier destination for in-depth analysis of daily headlines, insightful political commentary and informed perspectives. Reaching more than 95 million households worldwide, MSNBC offers a full schedule of live news coverage, political opinions and award-winning documentary programming -- 24 hours a day, 7 days a week. Connect with MSNBC Online Visit msnbc.com: http://on.msnbc.com/Readmsnbc Subscribe to MSNBC Newsletter: MSNBC.com/NewslettersYouTube Find MSNBC on Facebook: http://on.msnbc.com/Likemsnbc Follow MSNBC on Twitter: http://on.msnbc.com/Followmsnbc Follow MSNBC on Instagram: http://on.msnbc.com/Instamsnbc #MSNBC #Putin #Trump