Stat: $477 billion. That's the amount spent on prescription drugs in the United States last year, according to the Department of Health and Human Services.

Story: Skyrocketing prescription drug prices have long troubled U.S. Senator Susan Collins of Maine, who has championed bipartisan legislation to give consumers more affordable choices. In this rebroadcast of a Pew event, she discusses what can be done to manage drug costs and ensure that Americans get the medicine they need.