Would it work? Those were some of the questions that we had in mind when we set out to see, film and map every foot of the U.S.-Mexico border. This map will show you video of the entire border ...

Migrants are dying in their thousands at the southern border, with women and children increasingly among those who perish.

Commissioner John B. Weller and surveyor Andrew Gray had been sent to the border of the United States and Mexico to mark a line that existed only on maps, and the work was not going well.