At Freedom Park in Border Field State Park in Imperial Beach, Calif., Dylan Terrazes of Santa Barbara, Calif. touches his grandmother's fingers as she meets him for the first time.  The park sits at the end of the 1,933 miles of the U.S.-Mexico border. Border Patrol allows people to congregate on both side of the fence on weekends. The small holes in the fence leave little room for physical contact through the fence except for fingertips. Those who visit at the park say they give "pinkie kisses" though the fence.
       
     
 An undocumented immigrant from El Salvador sits in the back of a police cruiser after being apprehended while fleeing from police along Route 281 north of Edinburg, Texas.
       
     
 Hidalgo County Constable Sgt. Aaron Moreno walks through the remains of a stash house in Edinburg, Texas. Human traffickers use stash houses to hold undocumented immigrants while waiting to take them through their smuggling operations to bypass border patrol. Immigrants are often held hostage by smugglers, who extort more money from the immigrants' family members to continue their movements north.
       
     
 Hidalgo County Deputy Constable Raul Salinas approaches suspected undocumented immigrants during a raid on a home in Elsa, Texas.
       
     
 Ruben Garza Jr., a Supervisory Border Patrol Agent, comforts two children as a bus they were traveling on was searched at the checkpoint in Falfurrias, Texas.
       
     
 Undocumented immigrants sit in the kitchen of a home being used as a stash house after Border Patrol, Homeland Security and constables raided the home in Edinburg, Texas. The nationalities of the 12 immigrants found in the home included Guatemalan, Mexican, Honduran and El Salvadorian.
       
     
 A suspect is taken into custody at a coyote stash house in Edinburg, Texas.
       
     
 A grave for a undocumented migrant is marked with the name 'John Doe' and a small wooden cross in a section of Terrace Park Cemetery in Holtville, Calif., where unidentified migrants are buried.
       
     
 The U.S.-Mexico border fence runs out into the Pacific Ocean near Border Field State Park in Imperial Beach, Calif.
       
     
 At Freedom Park in Border Field State Park in Imperial Beach, Calif., Dylan Terrazes of Santa Barbara, Calif. touches his grandmother's fingers as she meets him for the first time.  The park sits at the end of the 1,933 miles of the U.S.-Mexico border. Border Patrol allows people to congregate on both side of the fence on weekends. The small holes in the fence leave little room for physical contact through the fence except for fingertips. Those who visit at the park say they give "pinkie kisses" though the fence.
       
     

At Freedom Park in Border Field State Park in Imperial Beach, Calif., Dylan Terrazes of Santa Barbara, Calif. touches his grandmother's fingers as she meets him for the first time.  The park sits at the end of the 1,933 miles of the U.S.-Mexico border. Border Patrol allows people to congregate on both side of the fence on weekends. The small holes in the fence leave little room for physical contact through the fence except for fingertips. Those who visit at the park say they give "pinkie kisses" though the fence.

 An undocumented immigrant from El Salvador sits in the back of a police cruiser after being apprehended while fleeing from police along Route 281 north of Edinburg, Texas.
       
     

An undocumented immigrant from El Salvador sits in the back of a police cruiser after being apprehended while fleeing from police along Route 281 north of Edinburg, Texas.

 Hidalgo County Constable Sgt. Aaron Moreno walks through the remains of a stash house in Edinburg, Texas. Human traffickers use stash houses to hold undocumented immigrants while waiting to take them through their smuggling operations to bypass border patrol. Immigrants are often held hostage by smugglers, who extort more money from the immigrants' family members to continue their movements north.
       
     

Hidalgo County Constable Sgt. Aaron Moreno walks through the remains of a stash house in Edinburg, Texas. Human traffickers use stash houses to hold undocumented immigrants while waiting to take them through their smuggling operations to bypass border patrol. Immigrants are often held hostage by smugglers, who extort more money from the immigrants' family members to continue their movements north.

 Hidalgo County Deputy Constable Raul Salinas approaches suspected undocumented immigrants during a raid on a home in Elsa, Texas.
       
     

Hidalgo County Deputy Constable Raul Salinas approaches suspected undocumented immigrants during a raid on a home in Elsa, Texas.

 Ruben Garza Jr., a Supervisory Border Patrol Agent, comforts two children as a bus they were traveling on was searched at the checkpoint in Falfurrias, Texas.
       
     

Ruben Garza Jr., a Supervisory Border Patrol Agent, comforts two children as a bus they were traveling on was searched at the checkpoint in Falfurrias, Texas.

 Undocumented immigrants sit in the kitchen of a home being used as a stash house after Border Patrol, Homeland Security and constables raided the home in Edinburg, Texas. The nationalities of the 12 immigrants found in the home included Guatemalan, Mexican, Honduran and El Salvadorian.
       
     

Undocumented immigrants sit in the kitchen of a home being used as a stash house after Border Patrol, Homeland Security and constables raided the home in Edinburg, Texas. The nationalities of the 12 immigrants found in the home included Guatemalan, Mexican, Honduran and El Salvadorian.

 A suspect is taken into custody at a coyote stash house in Edinburg, Texas.
       
     

A suspect is taken into custody at a coyote stash house in Edinburg, Texas.

 A grave for a undocumented migrant is marked with the name 'John Doe' and a small wooden cross in a section of Terrace Park Cemetery in Holtville, Calif., where unidentified migrants are buried.
       
     

A grave for a undocumented migrant is marked with the name 'John Doe' and a small wooden cross in a section of Terrace Park Cemetery in Holtville, Calif., where unidentified migrants are buried.

 The U.S.-Mexico border fence runs out into the Pacific Ocean near Border Field State Park in Imperial Beach, Calif.
       
     

The U.S.-Mexico border fence runs out into the Pacific Ocean near Border Field State Park in Imperial Beach, Calif.