U.S. Strategic Command last week lifted a ban on the use of memory sticks, thumb drives and other "removable flash media" devices on Defense Department networks. The ban was instituted in response to security concerns over the ubiquitous devices, prompting debate and some opposition within the military. On Feb. 12, STRATCOM issued an "all-DOD message" allowing "the limited return to use of memory sticks, thumb drives and camera flash memory cards in all DOD NIPRNET, SIPRNET and JWICS computers using...