In fact, Gao Yang couldn't be sure that the little old man was a spy. After all, in a small village, the likelihood of a very common little old Yemeni man being a spy is not very high.
However, Gao Yang was always very cautious, and he had very good eyesight, so he saw that when the old man was fetching water, he was holding something that flashed for a moment, and Gao Yang thought it looked like a phone with only half exposed.
If it was in a big city, or even in a village in Huaxia, someone taking out a phone to snap a photo wouldn't be a big deal, but this was Yemen, where there is hardly any mobile signal in most places. Even in Sana'a, the phone signal is very poor and intermittent.
Even though this village is close to Kamar City, there is no mobile signal even in Kamar City itself, so what's the use of carrying a phone in a place with no signal.
