Namely, the fact that out of the 104 reactors we've been operating at 65 plants over the past 40 years, we've had ONE, release of radiation, and ZERO direct deaths due to nuclear power in the United States. I'd call that pretty darn safe.
Unfortunately, the facts disagree with you.
19 November 1971
The water storage space at the Northern States Power Company's reactor in Monticello, Minnesota filled to capacity and spilled over, dumping about 50,000 gallons of radioactive waste water into the Mississippi River. Some was taken into the St. Paul water system.
July 1981
A flood of low-level radioactive wastewater in the sub-basement at Nine Mile Point's Unit 1 (in New York state) caused approximately 150 55-gallon drums of high-level waste to overturn, some of which released their highly radioactive contents. Some 50,000 gallons of low-level radioactive water were subsequently dumped into Lake Ontario to make room for the cleanup. The discharge was reported to the Nuclear Regulatory Commission, but the sub-basement contamination was not. A report leaked to the press 8 years later resulted in a study which found that high levels of radiation persisted in the still flooded facility.
25 January 1982
A steam generator pipe broke at the Rochester Gas & Electric Company's Ginna plant near Rochester, New York. Fifteen thousand gallons of radioactive coolant spilled onto the plant floor, and small amounts of radioactive steam escaped into the air.
15-16 January 1983
Nearly 208,000 gallons of water with low-level radioactive contamination was accidentally dumped into the Tennesee River at the Browns Ferry power plant.
15 February 2000
New York's Indian Point II power plant vented a small amount of radioactive steam when a an aging steam generator ruptured. The Nuclear Regulatory Commission initially reported that no radioactive material was released, but later changed their report to say that there
was a leak, but not of a sufficient amount to threaten public safety.
November 2005
High tritium levels, the result of leaking pipes, were discovered to have contaminated groundwater immediately adjacent to the Braidwood Generating Station in Braceville, Illinois.
June 2011
An AP investigation revealed that three quarters of all nuclear plants in the U.S. were found to be leaking radioactive tritium. Over half the plants studied had concentrations exceeding the federal drinking water standard, and while none had reached public drinking supplies, leaks at three plants had contaminated the drinking wells of nearby homes.
That's significantly more than "one", and those are just the ones that have made it into the press.
That also doesn't count the leaks at fuel processing and disposal facilities:
11 May 1969
A
plutonium fire broke out in Building 776 at the Atomic Energy Commission's Rocky Flats Nuclear Weapons Plant. Plutonium was released into the atmosphere and tracked out of the building on the boots of firefighters, and several buildings at the factory were so badly contaminated that they had to be dismantled.
1971
After experimenting with disposal of radioactive waste in salt, the Atomic Energy Commission announced that "Project Salt Vault" would solve the waste problem. But when 180,000 gallons of contaminated water was pumped into a borehole; it promptly and unexpectedly disappeared. The project was abandoned two years later.
1972
The West Valley, NY fuel reprocessing plant was closed after 6 years in operation, leaving 600,000 gallons of high-level wastes buried in leaking tanks. The site caused measurable contamination of Lakes Ontario and Erie.
December 1972
A major fire and two explosions occurred at a Pauling, New York plutonium fabrication plant. An undetermined amount of radioactive plutonium was scattered inside and outside the plant, resulting in its permanent shutdown.
16 July 1979
A dam holding radioactive uranium mill tailings broke, sending an estimated 100 million gallons of radioactive liquids and 1,100 tons of solid wastes downstream at Church Rock, New Mexico.
August 1979
Highly enriched uranium was released from a top-secret nuclear fuel plant near Erwin, Tennessee. About 1,000 people were contaminated with up to 5 times as much radiation as would normally be received in a year. Between 1968 and 1983 the plant "lost" 234 pounds of highly enriched uranium, forcing the plant to be closed six times during that period.
January 1980
A 5.5 Richter earthquake at Lawrence Livermore National Laboratory, where large amounts of nuclear material are kept, caused a tritium leak.
December 1984
The Fernald Uranium Plant, a 1,050-acre uranium fuel production complex 20 miles northwest of Cincinnati, Ohio, was temporarily shut down after the Department of Energy disclosed that excessive amounts of radioactive materials had been released through ventilating systems. Subsequent reports revealed that 230 tons of radioactive material had leaked into the Greater Miami River valley during the previous thirty years, 39 tons of uranium dust had been released into the atmosphere, 83 tons had been discharged into surface water, and 5,500 tons of radioactive and other hazardous substances had been released into pits and swamps where they seeped into the groundwater. In addition, 337 tons of uranium hexafluoride was found to be missing, its whereabouts completely unknown. In 1988 nearby residents sued and were granted a $73 million settlement by the government. The plant was not permanently shut down until 1989.
6 January 1986
A container of highly toxic gas exploded at The Sequoyah Fuels Corp. uranium processing factory in Gore, Oklahoma, causing one worker to die (when his lungs were destroyed) and 130 others to seek medical treatment. In response, the Government kept the plant closed for more than a year and fined owners Kerr-McGee $310,000, citing poorly trained workers, poorly maintained equipment and a disregard for safety and the environment. [See also
24 November 1992.]
1986
After almost 40 years of cover-ups, the U.S. Government released 19,000 pages of previously classified documents which revealed that the Hanford Engineer Works was responsible for the release of significant amounts of radioactive materials into the atmosphere and the adjacent Columbia River. Between 1944 and 1966, the eight reactors, a source of plutonium production for atomic weapons, discharged billions of gallons of liquids and billions of cubic meters of gases containing plutonium and other radioactive contaminants into the Columbia River, and the soil and air of the Columbia Basin. Although detrimental effects were noticed as early as 1948, all reports critical of the facilities remained classified. By the summer of 1987, the cost of cleaning up Hanford was estimated to be $48.5 billion. The Technical Steering Panel of the government-sponsored Hanford Environmental Dose Reconstruction Project released the following statistics in July 1990: Of the 270,000 people living in the affected area, most received low doses of radiation from Iodine, but about 13,500 received a total dose some 1,300 times the annual amount of airborne radiation considered safe for civilians by the Department of Energy. Approximately 1,200 children received doses far in excess of this number, and many more received additional doses from contaminants other than Iodine.
The National Research Council panel released a report listing 30 "significant unreported incidents" at the Savannah River production plants over the previous 30 years. As at Hanford (see 1986), ground water contamination resulted from pushing production of radioactive materials past safe limits at this weapons complex. In January 1989, scientists discovered a fault running under the entire site through which contaminants reached the underground aquifer, a major source of drinking water for the southeast. Turtles in nearby ponds were found to contain radioactive strontium of up to 1,000 times the normal background level.
24 November 1992
The Sequoyah Fuels Corp. uranium processing factory in Gore, Oklahoma closed after repeated citations by the Government for violations of nuclear safety and environmental rules. It's record during 22 years of operation included an accident in 1986 that killed one worker and injured dozens of others and the contamination of the Arkansas River and groundwater. The Sequoyah Fuels plant, one of two privately-owned American factories that fabricated fuel rods and armor-piercing bullet shells, had been shut down a week before by the Nuclear Regulatory Commission when an accident resulted in the release of toxic gas. Thirty-four people sought medical attention as a result of the accident. The plant had also been shut down the year before when unusually high concentrations of uranium were detected in water in a nearby construction pit. [Also see 6 January 1986 for details of an additional incident.] A Government investigation revealed that the company had known for years that uranium was leaking into the ground at levels 35,000 times higher than Federal law allows; Carol Couch, the plant's environmental manager, was cited by the Government for obstructing the investigation and knowingly giving Federal agents false information.
That's not counting transport problems. The DOE published, in 1996, a report detailing 8 incidents where the supposedly "leakproof" containers DID leak. While non was truly severe, the NRC still claims that no leaks have occurred - so clearly the NRC CANNOT be trusted.
As Coolhand said:
Safe is a word that needs to be put into context, its a relative thing, nothing is "safe" as you might consider its idealised meaning. and its "safe" until something goes wrong, safe until something unexpected happens, safe while operating under normal parameters... Its just a word people use and means nothing.
As Zatnikitelman pointed out, nuclear power has caused zero deaths in the United States.
The facts disagree with you as well.
3 January 1961
The world's first nuclear-related fatalities occurred following a reactor explosion at the National Reactor Testing Station in Idaho Falls, Idaho. Three technicians, were killed, with radioactivity "largely confined" (words of John A. McCone, Director of the Atomic Energy Commission) to the reactor building. The men were killed as they moved fuel rods in a "routine" preparation for the reactor start-up. One technician was blown to the ceiling of the containment dome and impaled on a control rod. His body remained there until it was taken down six days later. The men were so heavily exposed to radiation that their hands had to be buried separately with other radioactive waste, and their bodies were interred in lead coffins. Another incident three weeks later (on 25 January) resulted in a release of radiation into the atmosphere.
24 July 1964
Robert Peabody, 37, died at the United Nuclear Corp. fuel facility in Charlestown, Rhode Island, when liquid uranium he was pouring went critical, starting a reaction that exposed him to a lethal dose of radiation.
27 July 1972
Two workers at the Surry Unit 2 facility in Virginia were fatally scalded after a routine valve adjustment led to a steam release in a gap in a vent line.
9 December 1986
A feedwater pipe ruptured at the Surry Unit 2 facility in Virginia, causing 8 workers to be scalded by a release of hot water and steam. Four of the workers later died from their injuries. In addition, water from the sprinkler systems caused a malfunction of the security system, preventing personnel from entering the facility. This was the second time that an incident at the Surry 2 unit resulted in fatal injuries due to scalding
Again, just the immediate deaths. Deaths due to cancer caused by radiation exposure aren't tracked or reported by ANY agency.
In every case, the problem turns out to be human fault. While it's
theoretically possible for nuclear power to be safe, it's not
realistically possible because humans make mistakes - sometimes through ineptness or fatigue, sometimes through laziness or greed, etc.
There are 23 reactors in the US that are the same type as the one in Japan, and while they aren't located on seacoasts, some are located near faultlines and on floodplains.
As to the workers who fell from windtowers, I say good riddance. I am a certified tower climber, and have worked on wind turbines, aerials, etc. There are VERY simple proceedures that can eliminate the possibility of a fall, and these guys should have used their harnesses correctly. My sympathy to the families - but this is just Darwin at work, and I'm glad to see these idiots out of the gene pool.