The local FOX newscast has the gory details (w/ video).

Canyons School District is investigating the loss of a USB flash drive containing sensitive information about employees and possibly former employees of the district. The information on the drive included addresses, phone numbers, Social Security numbers and dates of birth.

While there are no signs of foul play, all employees have been advised to monitor their credit.  This could have been prevented by taking simple steps to protect sensitive data.  You may not be carrying around missile secrets, but most organizations store the type of information that can be used for fraud.

Data Security, Portable Storage