When I saw this on the BBC, I had to check with a number of other places before posting, as it looks like a December 'fool'. The company, Scaled Composites, Inc. run by Burt Rutan have been ultra secretive. Read the various web sites and judge for yourself.
The sound barrier has been breached by a privately built rocket-plane, the first time it has been done without government help.
BBC
Scaled Composites
Space.com
It is usually the Brits who find the thing that went wrong and mention that larger than the main story. Interestingly, on this occasion, CNN have done that.
Test rocket flight ends in minor mishap
CNN