The first production unit in the multibillion-dollar life extension program of the B61 nuclear gravity bomb will be delayed by about 16 to 18 months, according to a senior official at the National Nuclear Security Administration. "As we've informed all our stakeholders to include Congress and [the Defense Department], reports indicate a very small number of electronic components that have shown that we can't demonstrate their reliability to last for 30 years. We'll have to make some changes to those...
