scenes. this is the tip of the iceberg. they are all lined up. the vehicles are running. there s an officer inside. they are pointed in the direction of mexico and you can see they are almost touching. this stretch as far as the eye can see all the way down the river banks here. they are pointed north in the direction of the united states. the carry ban was 1,800 and arrived a week ago. authorities say that the people in the caravan have began to realize their chances of getting asylum will take months and months. mexican authorities believe those going back will go up as