Next to a river flowing from lush green hills, Lim Sun-bun, 64, tills her land — onions, garlic, potatoes and peppers.
She's lived in rural Seongju county, about 130 miles from Seoul in the southeastern region of the Korean Peninsula, all her life. It's a quiet, conservative, agricultural place, famous for growing melons.
But this past winter, Lim started hearing U.S. helicopters overhead.
"They fly low, and it's scary," she says. "No one asked us if we want to host this U.S. base. I'm worried about contamination of this river — our livelihood."