TOKYO, TOKYO - DECEMBER 18: Australian Prime Minister Malcolm Turnbull meets the robot Asimo at the National Museum of Emerging Science and Innovation on December 18, 2015 in Tokyo, Japan. Prime Minister Turnbull is on one-day itinerary for his first visit to Tokyo to discuss topics including whaling in the southern oceans and submarine contract, and broader political, strategic and economic issues. (Photo by Yoshikazu Tsuno-Pool/Getty Images)

TOKYO, TOKYO - DECEMBER 18:  Australian Prime Minister Malcolm Turnbull meets the robot Asimo at the National Museum of Emerging Science and Innovation on December 18, 2015 in Tokyo, Japan. Prime Minister Turnbull is on one-day itinerary for his first visit to Tokyo to discuss topics including whaling in the southern oceans and submarine contract, and broader political, strategic and economic issues.  (Photo by Yoshikazu Tsuno-Pool/Getty Images)