Another major report on health care is out, bringing with it a mix of good and bad news. The good news is about the Affordable Care Act: The law has helped young adults, not only by giving hundreds of thousands of them access to health insurance but, in many cases, by giving the ones who already had insurance better coverage than before. The law has also bolstered basic benefits for some older working-age Americans. The bad news is about the health care system overall. Premiums for employer-sponsored insurance, which had been rising at a more modest pace, spiked again last year.