Major chinese cities have 100+ each of the world's largest underground boring machines---building underground like ANTS.They intend on world travel via underground high speed trains to all their countries....
They are too foolish to understand Biblical Prophecy that when Jesus Returns---all of the devils underground will receive a stone to their forehead---the earth lives/moves and all underground will be destroyed instantly--buried in rock.
THE LAST PLACE you want to be when the earth is shaking and moving is underground....countries sink as new countries emerge.