gregg: keeping an eye on north korea's next move. the rogue nation could conduct an atomic test. this washington on high alert. as well as the world. david has more in bangkok, thailand. reporter: yes, these satellite images are released from the associated press indicate receptivity in a nuclear test site in north korea. experts have looked at the pictures and saying there is flood damage. but they also say that there is more water pouring out of one of the tunnels at the nuclear test site.