 At the southern border, the Department of Homeland Security says encounters with migrants crossing without authorization have gone down significantly in the last few weeks. The White House says it's because of President Biden's decision to severely restrict asylum claims for most undocumented immigrants. NPR's immigration correspondent Jasmine Garst has been reporting from the California-Mexico border, and she's there now. Hey, Jasmine. Hi. How much has undocumented immigration dropped?