When the U.S. Supreme Court rules Thursday on the constitutionality of the Affordable Care Act, it will also rule on whether the expansion of Medicaid is an unconstitutional infringement of states' rights.
When the Supreme Court announces its long-anticipated decision on the constitutionality of the Affordable Care Act on Thursday, all eyes will be on the so-called individual mandate. That's the section of the law that requires most Americans to either have health insurance or pay a penalty starting in 2014.
The astronomer Carl Sagan made it his life's work to engage the public in the world of science and exploration. The Library of Congress announced Wednesday that it's acquired his personal papers. Host Audie Cornish talks with Ann Druyan, Sagan's widow.