Four security fences and a team of border patrol vehicles deter improvised river crossings.

FORBES: Why Is Mexico's Murder City Attracting Investors?

Along a two-mile stretch of the border just outside El Paso, five Border Patrol vehicles wait, ready to give chase should anyone manage to get past the fence.

ECONOMIST: The Republicans are fretting about a disappearing problem

While 94 percent of those entering from Canada crossed in personal vehicles, on the Mexican border 83 percent used personal vehicles while 16 percent traveled by foot.

CNN: U.S. tracks heaviest border-crossing points

Deploying unmanned aerial vehicles that now patrol the border from Texas to California, and a fence that was demanded back in 2007 is now basically complete.

WHITEHOUSE: Press Briefing

Before September 11, most vehicles were waved through U.S. border checkpoints.

CNN: U.S. tracks heaviest border-crossing points

Then comes the high-pitched whine of tires against road as vehicles speed up in anticipation of hitting the Montana border.

ECONOMIST: End of the last free state

About 60 vehicles were stranded on the Canadian side of the border.

CNN: STORY HIGHLIGHTS

Four drivers, ten journalists in four vehicles left Amman to head into the night for the Iraqi Border.

FORBES: Remembering the Road to Baghdad

More than a dozen Egyptian soldiers were killed and seven others were wounded in an August 5 attack near the Rafah border crossing, when assailants with semiautomatic weapons and hand grenades stole two armored vehicles from Egyptian forces and tried to enter Israel.

CNN: Three policemen wounded in Sinai

The raid comes a week after 16 Egyptian soldiers were killed and seven others were wounded in an attack near the Rafah border crossing, when assailants with semiautomatic weapons and hand grenades stole two armored vehicles from Egyptian forces and tried to enter Israel.

CNN: Egyptian forces raid Sinai militants, source says

Unmanned aerial vehicles (UAVs), also known as drones, are now being used in border security and that is only set to increase, according to one industry source.

FORBES: An increase in border security could result in more M&A

Neighbouring Kuwait has talked of building a new border post in the desert so that companies can bypass the port and bring in rigs on vehicles, but it has set no date.

ECONOMIST: Iraq's oil

Vehicles faced a detour of almost ten miles to travel between Cwmtwrch and Pen Rhiwfawr on the counties' border.

BBC: Swansea Valley new bridge ends 14-year weight limit