Believe it or not, there are still new revelations to be had regarding the various ways America’s National Security Agency spies on its targets. Just days before President Obama is expected to reveal a number of significant changes to the spying programs employed by the NSA, a new report from The New York Times sheds light on a previously unknown NSA spying tactic that allows the agency to conduct surveillance on computers that aren’t even connected to the Internet. “While most of the software is inserted by gaining access to computer networks, the N.S.A. has increasingly made use of a secret technology that enables it to enter and alter data in computers even if they are not connected to the