NAIROBI, June 2 (Xinhua) -- Joshua Changun, a 61-year-old farmer from Ngatuko village in Baringo County, northwestern Kenya, stands on the edge of a cliff, watching a modified off-road vehicle grinding and jostling through the rugged terrain.
His facial expressions shift rapidly, from amazement to terror and back to bewilderment, as the machines roar over rocks and rattle through the wilderness.
