barbed wire

On the ground, amid the sagebrush and tumbleweeds, are a few old barracks, a weathered wooden fence strung with barbed wire and a wind-battered guard tower.

First Lady Pat Nixon presided over the park’s dedication in 1971, crossing a barbed wire fence that separated the two countries to greet cheering Mexicans on the other side.

Instead, inmates run past prison huts, barbed wire and high fences.

On her third try, in July 1980, Dora crossed over barbed wire into the Sonoran Desert on the United States side of the border with 25 other migrants when tragedy struck.

Topped by barbed wire and surveillance cameras in some places, it cuts through rice fields and carves up once-adjoined streets.