They are coming to the United States in droves, but where do all the children go?
"There were some that were sad all the time but they would get used to being there."
We first uncovered one of the locations where they are sheltered in Los Fresnos in 2007.
Today, that facility is still up and running and Ana Montes says the flow of immigrant children who cross the border without family keeps the staff very busy.
"They have teachers, staff, coaches, child care workers."
Ana worked for the International Education Services run by the Office Of Refugee Resettlement for a little less than a year and was tasked with keeping a close eye on the teenagers from Mexico and Central America.
"I was a child care worker and I had a group of 8 that I would watch."
The unaccompanied minors, as they are labeled by the government, are set up in a camp like environment, sleeping in cozy cabins, fed three meals a day in a dining hall and attending classes to learn English while studying other subjects.
"They had chores to do in the morning and clean rooms and then breakfast and classes."
Ana also worked at a facility in Harlingen where she says there are mostly male immigrant children.
We were immediately pushed away from the entrance of the BCFS and staff even attempted to block our camera shots from across the street.
They are located in Harlingen.
Ana worked with immigrant children here for several years.
"They are very well taken care of."
It's a sad situation Ana says, and the stories the children have to tell are heartbreaking, but its part of the job to not get attached as the children will be sent to sponsor or foster homes or if they're lucky be reunited with their own families.
"They tell me when they leave they want a hug, but we can't hug them."