3/31/2011 - A bilateral task force from the United States and Australia help Tokyo Electric Power Company employees complete a fresh water cooling system at Onahama port March 29, 2011. The system of high pressure pumps and hoses will be used to spray freshwater from barges onto the Fukushima nuclear power plant. Japan Maritime Self-Defense Force vessels towed the barges full of freshwater from Yokosuka to the site. Eight Yokota Airmen designed and created necessary adapters, pressure valves and other pieces of equipment to modify the pumps for the mission. (U.S. Air Force photo/Osakabe Yasuo)

3/31/2011 - Contractors from the Tokyo Electric Power Company practice emergency action drills at Onahama port near the Fukushima nuclear power plant March 29, 2011. The U.S. government provided water pumps and two barges to TEPCO to allow freshwater to be sprayed on the reactor. Japan Maritime Self-Defense Force vessels towed the barges from Yokosuka to the site. Eight Yokota Airmen designed and created necessary adapters, pressure valves and other pieces of equipment to modify the pumps for the mission. (U.S. Air Force photo/Osakabe Yasuo)

3/31/2011 - A bilateral task force from the United States and Australia help Tokyo Electric Power Company employees complete a fresh water cooling system at Onahama port March 29, 2011. The system of high pressure pumps and hoses will be used to spray freshwater from barges onto the Fukushima nuclear power plant. Japan Maritime Self-Defense Force vessels towed the barges full of freshwater from Yokosuka to the site. Eight Yokota Airmen designed and created necessary adapters, pressure valves and other pieces of equipment to modify the pumps for the mission. (U.S. Air Force photo/Osakabe Yasuo)

3/31/2011 - Lt. Col. Dylan Monaghan, U.S. Embassy Tokyo, coordinates with officials from the Japan Maritime Self-Defense Force and Tokyo Electric Power Company at Onahama port March 29, 2011. The U.S. government donated a system of high pressure pumps and hoses to be used to spray freshwater from barges onto the Fukushima nuclear power plant. Japan Maritime Self-Defense Force vessels towed the barges full of freshwater from Yokosuka to the site. Eight Yokota Airmen designed and created necessary adapters, pressure valves and other pieces of equipment to modify the pumps for the mission. (U.S. Air Force photo/Osakabe Yasuo)

3/31/2011 - A contractor from Tokyo Electric Power Company works on a water pump near the Fukushima nuclear power plant March 29, 2011. The U.S. government donated a system of high pressure pumps and hoses that will be used to spray freshwater from barges onto the power plant. Japan Maritime Self-Defense Force vessels towed the barges full of freshwater from Yokosuka to the site. Eight Yokota Airmen designed and created necessary adapters, pressure valves and other pieces of equipment to modify the pumps for the mission. (U.S. Air Force photo/Osakabe Yasuo)

3/31/2011 - Contractors from theTokyo Electric Power Company and Blair Smith, from the REL Group in Australia, piece together a water pump system to transport fresh water into the Fukushima nuclear power plant March 28, 2011. The system of high pressure pumps and hoses will be used to spray freshwater from barges onto the plant. Japan Maritime Self-Defense Force vessels towed the barges full of freshwater from Yokosuka to the site. Eight Yokota Airmen designed and created necessary adapters, pressure valves and other pieces of equipment to modify the pumps for the mission. (U.S. Air Force photo/Osakabe Yasuo)

3/31/2011 - A water pump arrives at Onahama port, Fukushima Prefecture, March 28, 2011. The pump is part of a system of high pressure pumps and hoses that will be used to spray freshwater from barges onto the Fukushima nuclear power plant. Japan Maritime Self-Defense Force vessels towed the barges full of freshwater from Yokosuka to the site. Eight Yokota Airmen designed and created necessary adapters, pressure valves and other pieces of equipment to modify the pumps for the mission. (U.S. Air Force photo/Osakabe Yasuo)

3/31/2011 - A bilateral task force from the United States and Australia arrive at Onahama port to help Tokyo Electric Power Company employees complete a fresh water cooling system March 29, 2011. The system of high pressure pumps and hoses will be used to spray freshwater from barges onto the Fukushima nuclear power plant. Japan Maritime Self-Defense Force vessels towed the barges full of freshwater from Yokosuka to the site. Eight Yokota Airmen designed and created necessary adapters, pressure valves and other pieces of equipment to modify the pumps for the mission. (U.S. Air Force photo/Osakabe Yasuo)

3/31/2011 - Volunteers from Australia land at Onahama port, Fukushima Prefecture by HH-60 Pave Hawk March 28, 2011. A bilateral task force from the United States and Australia will help Tokyo Electric Power Company employees complete a fresh water cooling system. The system of high pressure pumps and hoses will be used to spray freshwater from barges onto the Fukushima nuclear power plant. Japan Maritime Self-Defense Force vessels towed the barges full of freshwater from Yokosuka to the site. Eight Yokota Airmen designed and created necessary adapters, pressure valves and other pieces of equipment to modify the pumps for the mission. (U.S. Air Force photo/Osakabe Yasuo)