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SCIENCE
March 24, 2011 | By Ralph Vartabedian, Los Angeles Times
How did Japanese workers at the crippled Fukushima nuclear plant jury-rig fire hoses to cool damaged reactors? Is contaminated water from waste pools overflowing into the Pacific Ocean? Exactly who is the national incident commander? The answers to these and many other questions are unclear to U.S. nuclear scientists and policy experts, who say the quality and quantity of information coming out of Japan has left gaping holes in their understanding of the disaster nearly two weeks after it began.
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SCIENCE
March 18, 2011 | By Thomas H. Maugh II, Los Angeles Times
Engineers at the Fukushima Daiichi nuclear power plant worked all day Friday attempting to connect a newly restored power line to reactors No. 1 and 2, but their task was repeatedly interrupted by the need to withdraw workers because of high radiation levels. The team said they hoped the task would be completed sometime Friday evening or in the early morning hours Saturday. It is not clear yet, however, whether restoring power to the two damaged reactors will help with cooling. Some engineers believe the cooling pumps were irretrievably damaged by the hydrogen explosions that wracked the reactor buildings in the first four days after the March 10 magnitude 9 Tohoku quake, or by corrosion from the seawater that has been pumped into the reactor.
WORLD
August 20, 2011 | By John M. Glionna, Los Angeles Times
Relations between the United States and Japan, already strained over the delayed relocation of an American military base on Okinawa, received no help this week when a retired U.S. envoy publicly criticized Tokyo's initial response in March to the nation's nuclear crisis. Comments by Kevin Maher, a former director of the State Department's Japan Office, shed light on Washington's mind-set during the early days of the crisis at the Fukushima Daiichi nuclear power plant. Speaking to reporters in Tokyo, Maher said U.S. officials worried about the lack of leadership shown by Prime Minister Naoto Kan's government after the March 11 earthquake and tsunami led to partial reactor meltdowns at the coastal plant.
WORLD
March 23, 2011 | By Julie Makinen and Don Lee, Los Angeles Times
[Update 12:47 a.m.] Tokyo's utility company says black smoke has been seen emerging from Unit 3 of the crippled nuclear plant in northeastern Japan, prompting a new evacuation of the complex. Officials with Tokyo Electric Power Co. said Wednesday that workers from the entire Fukushima Dai-ichi plant have been temporarily evacuated. _________________ Control room lights were on and electronic thermometers were functioning Wednesday at several of Japan's stricken nuclear reactors, marking small but potentially critical steps toward controlling overheated fuel that has been spewing radiation for more than a week.
SCIENCE
March 14, 2011 | By Thomas H. Maugh II, Los Angeles Times
The fuel rods at a third nuclear reactor at the Fukushima No. 1 nuclear power plant have been fully exposed to air for short periods of time and at least partially exposed for more than three hours, allowing them to heat up and sharply raising the risk of a meltdown, according to officials of the Tokyo Electric Power Co., which owns the plant. The cooling problems at reactor No. 2 represent the most serious development in the ongoing problems at the nuclear power plant to date, according to nuclear specialist Edwin Lyman of the Union of Concerned Scientists.
WORLD
April 12, 2011 | By Kenji Hall and John M. Glionna, Los Angeles Times
Japanese nuclear regulatory officials Tuesday raised the severity rating at the earthquake- and tsunami-damaged Fukushima Daiichi power plant to the highest level by international standards, equaling the 1986 Chernobyl meltdown in the former Soviet Union. The country's Nuclear and Industrial Safety Agency announced that because of the amount of radioactive material released from the plant after the magnitude 9 earthquake a month ago, the rating would be changed to level 7, a "major accident" on the International Atomic Energy Agency's scale, up from a level 5, an "accident with wider consequences.
WORLD
March 25, 2011 | By Julie Makinen, Los Angeles Times
As Japan marked two weeks since the giant earthquake and tsunami, the number of people dead or missing grew to more than 27,000, with at least 200,000 others in shelters and radioactivity from a stricken nuclear plant continuing to cast a pall over daily life. Two workers at the hobbled Fukushima Daiichi nuclear facility were hospitalized for radiation exposure Thursday after stepping into contaminated water during repair operations at reactor No. 3, officials at the nation's nuclear safety agency said.
WORLD
March 27, 2011 | By Julie Makinen and Kenji Hall, Los Angeles Times
For the better part of Sunday, media outlets in Japan and around the world carried scary-sounding news about radiation at the stricken Fukushima nuclear plant's No. 2 reactor. In a typical report, Japanese broadcaster NHK said: "Power company says it has detected radioactive materials 10 million times normal levels. " After nightfall came the mea culpa. There was a "mistake in the measurement of the assessment" of radiation in a building near the reactor, Tokyo Electric Power Co. said on its website.
WORLD
July 4, 2011 | By John M. Glionna, Los Angeles Times
They were two old friends catching up over coffee, retirees swapping stories and gasping at the unfolding nuclear nightmare at the Fukushima Daiichi power plant. But instead of merely throwing their hands up over the disaster that shook the plant in the wake of the March 11 earthquake and tsunami, Nobuhiro Shiotani and Yasuteru Yamada, both 72-year-old scientists, decided they could do something to help. They devised a plan that some have called heroic, others misguided and suicidal.
WORLD
March 15, 2011 | By Laura King, Ralph Vartabedian and Thomas H. Maugh II, Los Angeles Times, Los Angeles Times Staff Writer
? Dangerous levels of radiation escaped a quake-stricken nuclear power plant after one reactor's steel containment structure was apparently breached by an explosion, and a different reactor building in the same complex caught fire after another explosion, Japan's leaders told a frightened population. Authorities warned that people within 20 miles of the crippled reactors should stay indoors to avoid being sickened by radiation. FOR THE RECORD: An earlier version of this story incorrectly spelled the first name of Japanese Prime Minister Naoto Kan as Naoko.
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