@CalamityJane,
My husband and I both retired from NSA, but mr.gbag went back to work a special project, it's just two days a week. NSA does not allow cell phones, CD's or DVD's or any electronic device to be brought into the building. Access to the regular internet is restricted to non-secure areas.
I realize it's impossible to enforce such restrictions in the private sector, so companies have to rely on the work ethic of their work force.