We >americans all must be tired of hearing revelations about the N.S.A. spying tactics. But, what will it take for us as americans to deny these shadow powers unfettered access with virtual impunity from the public, and the world at large? "The technology, which the agency has used since at least 2008, relies on a covert channel of radio waves that can be transmitted from tiny circuit boards and USB cards inserted surreptitiously into the computers. In some cases, they are sent to a briefcase-size relay station that intelligence agencies can set up miles away from the target."