plus, the remarkable story of this 9-year-old and how she s using her own voice for the first time all thanks to a rare and complex surgery. we re following these stories and more all coming right here to cnn central. we begin on the southern/u.s. border where thousands of migrants right now are making a very long trek by foot to the u.s. the caravan is called quote, the exodus of poverty. homeland security. p encounters with migrants at the border is averaging 10,000 nor the month of december alean. and border patrol agents say they ve been 380,000. what s unfolding from eagle pass, texas. what do you know about this caravan and how are officials preparing? jessica, they departed on christmas eve and they have spent their christmas day walking towards the united states. make no mistake about it, it s going to create an even more complicated situation. what we see and hear at the border, and, behind me it s a holding area that was empty when we arrived here this morning a