Ubuntu is NOT causing aggressive power management

"Ubuntu is NOT causing aggressive power management settings!The following things might instead cause aggressive power management settings :    * your (laptop) harddrive firmware might have aggressive power management defaults (operating system...

How to destroy a hard drive in five seconds

"You are on a U.S. military aircraft, transporting hard drives with important, classified information, when you collide with another plane and are forced to land near an enemy intelligence agency. There is no time to delete the files, and the drives are in heavy-duty steel...