It has been a year filled with big news stories that shaped the conversation on race, politics, privacy and much more. Yahoo Global News Anchor Katie Couric takes a look back at your most searched news stories of 2014. 10) Obamacare: Formally known as the Affordable Care Act, President Barack Obama’s plan to reform health care has been plagued by technical glitches and consumer confusion. Kathleen Sebelius, who led the rollout of the new law as health and human services secretary, stepped down in April. But now, a second act has begun. Open enrollment is under way until mid-February, but stay tuned for a looming Supreme Court case that could dismantle the entire program.