Amerikas heiße Grenze

NOGALES, AZ : The U.S. border Patrol drives along the U.S. Mexican border June 16, 2006 in Nogales, Arizona.

Miami, FL, USA: Agents flying a helicopter above Miami to patrol or illegal activity.

Rio Grande City, TX, USA: The Border Patrol evidence room in Rio Grande City. (Photo Credit: NGT)

Rio Grande City, Texas, USA: Boder Patrol Agents stacking up the bundles of marijuana that they found in a house.

Nogales, AZ: An agent looking through an underground tunnel. Claustrophobic tunnels like these could be infested with cockroaches and other parasites.

Amerikas heiße Grenze - generic

Nogales, AZ: Three Customs and Border Protection agents in the desert. In the harsh terrain of the Arizona desert, smugglers try to cross undetected from Mexico to the US and back. (Photo Credit: © NGT)

Laredo, TX: Customs and Border Protection agents patrolling the waterways in Laredo.

San Diego, CA: A bird's eye view of the border. Along the Mexico and USA border, Border Patrol agents are continually patrol the border to make sure it is secure from smugglers and human traffickers.

SAN DIEGO, CA, USA: A border patrol vehicle patrols the area of San Diego, California, near the Tijuana border. This San Ysidro border crossing is the busiest in the world, with over 40 million people entering the U.S. through this port in 2005 alone.

Nogales, AZ: An agent signaling to a helicopter in the air, while a group of apprehended men sit on the ground. Helicopters have been beneficial in conducting high speed chases.