Sunday, Jan. 24: Two compelling stories about health care

It is a giant question mark: What will happen to health care reform in America? This past week's election in Massachusetts has forced the president, Congress, and the country to take another hard look at the problems plaguing our system. Sunday, Dateline takes a look at the health care crisis through the eyes of American families who thought they were among the lucky ones: All had health insurance, and assumed they'd be covered when emergency hit. Turns out, they were in for the battle of their lives. NBC's Ann Curry reports on "Critical Condition."

Plus: A different kind of medical controversy, one that became a landmark legal battle. It involved an organ transplant, one of medicine's great miracles. Though transplants save thousands of lives every year, there is a shortage of organs, partly because of fear that the procedure could be abused. The dedicated young surgeon in this case was the first doctor accused of doing just that -- trying to save the life of one patient by hastening the death of another. Keith Morrison reports on "A Matter of Time." Click here for a sneak peek of this story.

Join us for a two-hour Dateline NBC on Sunday at 7 p.m. ET, 6 p.m. CT.