Iowa State University adopted a new six-point security plan last year. Part of that plan includes whole-disk encryption for laptops. If you have an enterprise class laptop (Dell Latitude) that you use for work at ISU then it will need to be encrypted.
On September 4, 2015, Extension IT released information regarding Iowa State University's whole-disk encryption plan for laptops. As of October 29, 2015, Extension IT staff have visited 16 out of the 20 regions and encrypted more than 800 laptops. If you have not had an Extension IT staff member in your region yet, you may expect them within the next month.
Most campus staff computers have already been encrypted as well. There are a few remaining departments remaining to be completed.