Los Alamos has constructed a high-power CO2 laser and is completing a thorough technical evaluation of the CO2 laser as an inertial confinement fusion (ICF) driver. Recent experimental work has shown unambiguously that 0.25 μm is near the wavelength for optimum coupling of laser radiation into a fusion target. Since KrF lases at 0.248 μm, has the potential for 10% wall plug efficiency and for low capital cost, Los Alamos is continuing to investigate the feasibility of KrF as a future ICF driver.