This document discusses the key challenges facing the U.S. healthcare system: cost, quality, and access. It notes that total U.S. healthcare expenditures reached $2.7 trillion in 2011, or 17.9% of GDP. Around 15.4% of the population, or 47.96 million people, lacked health insurance in 2012. Private health insurance covered 63.9% of the population, while government programs like Medicaid and Medicare covered 32.6%. International comparisons show the U.S. has higher costs but lower life expectancy and higher mortality rates than countries like Japan and Germany.