U.S. tracking three migrant caravans, one with 12,000 people

1. The troops were called late last year to harden the official border crossings, laying 70 miles of razor wire near the ports of entry, which Homeland Security says has been critical in preventing caravans from successfully breaking through.
2. Defense Undersecretary for Policy John Rood told Congress that those caravans are one reason why the presence of active-duty troops is still needed on the U.S.-Mexico border.
3. New House Armed Services Committee Chairman Adam Smith questioned why the mission was expanded from guard to active-duty troops, calling that a very rare move.

https://www.washingtontimes.com/news/2019/jan/29/us-tracking-three-migrant-caravans-one-12000-peopl/