When the Israeli army's surveillance drone swooped down, briefly scattering a Palestinian shepherd's flock, activist Guy Hirschfeld rightly predicted trouble. Hirschfeld is one of a small group of Israelis working against their country's creeping takeover of the Jordan Valley, a key part of the occupied West Bank that Palestinians see as vital for their future state. The drone arrived as Hirschfeld was shepherding shepherds -- accompanying Palestinian farmers grazing their ...