At Lawrence Livermore National Laboratory scientists used 192 lasers to create a brief fusion reaction that put out more energy than it took to create it. This breakthrough — decades in the making — bodes well for future power plants that generate electricity without radioactive waste, or carbon-laden exhaust. President Biden's vision of a commercial fusion power plant in 10 years, however, faces significant obstacles — not the least of which is the view of the actual scientists that it will tak