They now bring groups through the desert, often along trails once used by Pancho Villa's army.

ECONOMIST: Illegal immigration

History knows this town best for a raid by Mexican marauder Pancho Villa's forces on March 9, 1916.

CNN: On the border: Guns, drugs -- and a betrayal of trust

In 1916, U.S. President Wilson sent 12, 000 troops under General Pershing over the border to Mexico in a failed mission to pursue the bandit Pancho Villa.

CNN: Saturday, March 15, 1997R

Several months ago, Depp turned down the role of Mexican revolutionary Francisco "Pancho" Villa in another film.

CNN: Latino should have played lead in 'Argo'