While saying health care reform is a good start, Mayo Clinic CEO Dr. John Noseworthy cited a need to address the "sustainability of Medicare" as well as other issues while speaking on "Meet The Press with David Gregory" this morning. Dr. Noseworthy appeared on the live news show alongside Dr. Toby Cosgrove, CEO of the Cleveland Clinic, to discuss "How does Obamacare impact your health coverage?" The Affordable Care Act, or Obamacare, is a good beginning, he said, but it's important to be working on improvement in many segments of the health care industry. "The long-term sustainability of Medicare is something no one has taken on yet," said Noseworthy.