An unpublished government study from 2009 sounded alarm bells about the rich formula used to pay privately run Medicare insurance plans. Since then billions of dollars in waste have been documented.
For 50 years this little-known archive of civil-rights activities has gone pretty much untouched and untapped.
As one song puts it, the painful disease is "a crazy mess that you can't contain." So why not sing about it? Music videos from Latin America are going viral, just like chikungunya.
From spices, flour, milk, water and food coloring, a photographer creates startlingly realistic-looking images of space. These photos are convincing enough to impress an astrophysicist.