As stocks slide again, optimism fades from Wall Street.
Wal-Mart to close 269 stores globally
Sprint shake-ups continue as product head leaves.
Botched French drug trial leaves 1 brain dead and 5 others hospitalized.
Sean Penn defends his El Chapo interview, but says the article was “a failure.”
Penthouse to shutter print magazine, will go all digital
Chipotle is closing all of its restaurants for a few hours in February to talk to its workers about food safety.
Nintendo confirms it will launch its first smartphone game in March.
IBM scoops up IRIS Analytics’ fraud detection firm.
Spacewalk is suspended after possible leak in U.S. astronaut’s helmet.
Photo of Wal-Mart store courtesy of Niloo/Shutterstock.com.