What Jean didn’t expect was to find thousands of Haitian migrants like himself crossing at the same remote spot. The 38-year-old, his wife and two young children earlier this month joined as many as 14,000 mostly Haitian migrants camped under a Del Rio bridge. A confluence of factors caused the sudden sharp increase at the Texas town of about 35,000 residents. It also reflects the power of Facebook, YouTube and platforms like WhatsApp, which migrants use to share information that can get distorted as it speeds through immigrant communities, directing migration flows. In extending protections for Haitians this spring, the Biden administration cited security concerns and social unrest in the Western Hemisphere’s poorest country.