How to Destroy a Hard Drive, Permanently

This time last week FBI divers were searching Seccombe Lake, a freshwater lake about three kilometers from the Inland Regional Center, the site of December 2 shooting that left 14 dead and 22 injured. Reports indicated that shooters Tashfeen Malik and Syed Rizwan Farook had ditched their laptop hard drive, which may contain e-mails and other evidence, in the murky water around the time of the attack.

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