In the fight against terror, Germany is trying to gain the upper hand by spying on potential terrorists. They can already tap phone lines and use most forms of electronic surveillance. However, the German government wants to go even further by watching all internet activity on a suspect's computer. While a direct installation was recently prohibited by German courts, a "sneak attack" has not yet been forbidden. German officials are proposing a bill that would allow police agencies to send E-mails loaded with trojan horses, in an attempt to bug a suspect's computer. If a terror suspect was foolish enough to download attachments from the "Finance Ministry" or "Youth Services Office", a government official could read the contents of his hard drive or spy on his internet activities at any time. However, this idea is under much scrutiny. The likeliness that such a practice would become legal is very unlikely. And even if it did become legal, most terror suspects are smart enough not to install simple virus protection, and are probably running Mac OS X/Linux anyways to avoid such a problem.
Source: The Inquirer