71.   Low-level waste is relatively safe, when compared to the high-level radioactivity of liquid, solid and chemical waste such as spent nuclear fuel.

72.   Many of the dangerous radioactive elements in spent nuclear fuel decay away within weeks and months.

73.   Military shipyards also dot the landscape, containing thousands of spent nuclear fuel assemblies, in some cases housed in corroding steel and concrete containers.

74.   Moreover, fossil fuels are burned in mining and preparing nuclear fuels and in building reactors, so even nuclear energy is not entirely free of greenhouse gases.

75.   North Korea has just agreed with the United States not to try to develop weapons-grade nuclear fuel by itself.

76.   Now the industry is getting new consideration, as Bush calls for new nuclear power plants and the resumption of reprocessing nuclear fuel.

77.   Nuclear fuel once was brought to the plant but never inserted into the reactors.

78.   Nuclear fuel is stored in a wide variety of buildings, and previous security reviews have found that some of it is vulnerable to theft.

79.   One unresolved issue is the storage of spent nuclear fuel.

80.   One of those installations was a nuclear fuel fabrication plant at Ust-Kamenogorsk, where the highly enriched uranium was stored.

a. + fuel >>共 668
nuclear 11.94%
spent 8.67%
heating 4.19%
higher 3.69%
alternative 3.45%
high 2.52%
new 2.23%
cleaner 1.86%
domestic 1.38%
rising 1.35%
nuclear + n. >>共 455
test 12.07%
plant 5.46%
waste 3.91%
arm 3.72%
program 3.53%
material 3.17%
arsenal 3.16%
bomb 3.05%
warhead 2.63%
fuel 2.42%
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