Gao Yang's voice was filled with emotion, but it wasn't very excited.
Familiar with Gao Yang, Catherine asked with some confusion in a soft voice, "Gao, what did you find? Is there a problem?"
Gao Yang nodded and said, "There is a problem, a big problem."
Martin had already watched the same video many times, but he hadn't come up with anything of value; now he looked puzzled and said, "Can you talk about it? What's the problem, and what have you discovered?"
Gao Yang sighed, straightened up, and said in a deep voice, "You've already searched a large area nearby, haven't you?"
"Yes, we've been driving around, gradually expanding our search area. Let's say this, if a car can get there, we've been there. Even in places where cars can't go, we've used drones to search, but we haven't found anything."
"How far is the spread?"
"Within twenty-five kilometers in each direction from this central point, we should have covered everything."