The sweeping health care legislation signed by President Obama in March -- the Patient Protection and Affordable Care Act -- is the most dramatic overhaul of American health care in decades. It will expand medical coverage by 30 million people, expand consumer protections, update Medicare, and eventually require almost all Americans to obtain health insurance -- but those provisions will be phased in gradually between now and 2014. "Health Care/The New Landscape" is an occasional series by Star Tribune reporters describing the new law as it takes effect.