NYT: The social media network is publicly testing a "buy" button embedded in posts to allow users to instantly purchase products.
Forbes: The specialty food maker was purchased by giant General Mills for $820 million.
WSJ: In an effort to get addictive painkillers off the street, federal authorities will allow pharmacies and clinics to take back unused prescription drugs from patients.
Businessweek: Samuel Truett Cathy, founder of the Atlanta-based chicken restaurant chain, passed away this morning.
Fortune: The coffee giant is experimenting with new retail formats, including small locations and tasting rooms.
NYT: Joan Rivers was one of America's first successful female stand-up comics.
WSJ: Nonfarm labor productivity, or output per hour worked, rose at a 2.3% annual rate from April through June.
Reuters: Adult obesity rates increased in six U.S. states and decreased in none last year.
New York Times: All 7,700 CVS locations nationwide no longer sell tobacco products; the company has rebranded itself as CVS Health.
BBC: A study in the United States suggests the brain can be trained to prefer healthy food over unhealthy high-calorie foods using a diet that does not leave people hungry.
Bloomberg: Halliburton Co. agreed to pay $1.1 billion to settle a number of oil spill lawsuits.
WSJ: A 12-year study found that American eating habits have improved, except among low-income adults.
BBC: Google has built and tested autonomous aerial vehicles through Project Wing.