Europe's Migrant Crisis Explained

Europe is struggling to handle its largest flow of migrants since the aftermath of World War II. Why is the crisis happening now? The WSJ's Niki Blasina explains. Subscribe to the WSJ channel here: http://bit.ly/14Q81Xy More from the Wall Street Journal: Visit WSJ.com: http://www.wsj.com Follow WSJ on Facebook:   / wsjvideo   Follow WSJ on Google+: https://plus.google.com/+wsj/posts Follow WSJ on Twitter:   / wsjvideo   Follow WSJ on Instagram:   / wsj   Follow WSJ on Pinterest:   / wsj   Don’t miss a WSJ video, subscribe here: http://bit.ly/14Q81Xy More from the Wall Street Journal: Visit WSJ.com: http://www.wsj.com Visit the WSJ Video Center: https://wsj.com/video On Facebook:   / videos   On Twitter:   / wsj   On Snapchat: https://on.wsj.com/2ratjSM