They put food on our tables but live in the shadows. This man is fighting to be seen

Jose Martinez was 14 when he came to the U.S. from Mexico to work in agriculture. He became an activist after years of enduring tough working conditions. (Mike Kane for NPR)

SUNNYSIDE, Wash. — Jose Martinez has lived and worked in the United States since he was 14 years old. Now 67, he drives around the Yakima Valley in Washington state checking on fellow workers.

"When it's hot, do you have a place to protect yourself from the sun and heat?" he calls out to some workers on the side of an apple orchard on a sunny June morning.