Color image of several protesters marching along the highway leading to the Nevada Test Site to demonstrate against nuclear testing. They are part of the Lenten Desert Experience (also called the Nevada Desert Experience). Some are carrying wooden crosses.

Color image of a crowd of protesters with the Lenten Desert Experience (also called the Nevada Desert Experience), a group demonstrating against nuclear testing. One is holding a wooden cross.

Color image of several activists at a demonstration in the desert held by American Peace Test, a group protesting nuclear testing. Protesters are holding balloons that are to be released into the sky.

Color image of people on and around a stage set up for a demonstration held on World Peace Day by American Peace Test, a group protesting nuclear testing. The stage has large banners and displays many international flags. One of the banners reads, "Nuremberg requires that we act."

Color image of protesters walking along the highway by the Nevada Test Site at a demonstration held on Mother's Day in 1987 by American Peace Test, a group opposing nuclear testing.

Color images of a highway overpass near the Nevada Test Site. Protesters march along the highway at a demonstration held on Mother's Day in 1987 by American Peace Test, a group opposing nuclear testing.

Exterior of U.S. Environmental Protection Agency building, University of Nevada, Las Vegas.