Egyptian efforts have closed many of the southbound tunnels at the border town of Rafah, and passage is costly.
He hired a consultant from Phoenix to push the federal government for changes: an extra southbound lane at the border crossing, which opened on Nov. 16, and a dedicated lane for prescreened drivers and pedestrians, which has yet to happen.
Surveillance cameras have captured such smugglers plowing north through southbound gates at the border, their vehicles occasionally pushing others out of the way and running right over spike strips before they can be intercepted.
But nabs like Martinez are rare because U.S. officers don't keep track of southbound traffic at the border.
The road continues through neighborhoods, with southbound US 206 forming the border between Ewing Township to the northwest and Trenton to the southeast as a county-maintained road at the Calhoun Street intersection.
Americans often see population movement along the Canadian border as uniformly southbound with Canadians moving to the United States for lower taxes, milder weather and better jobs.
The Obama administration is making other sensible efforts to stem the crime flows: checking southbound rail cars at the border for illegal guns, money and other contraband; helping Mexico battle the cartels; sharing more information among American law-enforcement agencies.
At permanent checkpoints set up at border crossings, they also stop southbound vehicles and confront pedestrians going south on foot.
One of the trains that collided on Saturday was traveling from Przemysl, near the Ukrainian border, to Warsaw, the other was southbound from Warsaw to Krakow, one of the busiest stretches in the country.
Last October, my husband and I crossed the US-Mexico border in a VW campervan, heading southbound from California to Argentina.
