A satellite image taken on September 13, 2018 shows substantial growth in the tent city the US government is using to detain migrant children located in the desert in Tornillo, Texas. The tent city was originally used to house children separated from parents this summer, when the Trump administration was aggressively prosecuting parents traveling with children for illegal entry to the US. The US Department of Health and Human Services has stated that the new growth in the number of tents is necessary in order to house children who may cross the border on their own, unaccompanied by family members.