Forty-nine Central Americans seeking asylum at the U.S.-Mexico border were granted entry today. They're part of a caravan of around 200 migrants who arrived Sunday and camped in the rain, after traveling 2,000 miles and fleeing gang violence and other dangers in their home countries. Vox’s Dara Lind explains the long road facing asylum seekers, who still might not be able to stay. ************************************** Cambridge Analytica announced it was shutting down today. We explained how that company acquired data from millions of Facebook profiles with the hope of manipulating voting behavior in our March 21 episode: https://art19.com/shows/today-explained/episodes/a0f6735f-2df0-4277-b65e-ff3710dc1d08

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