According to the German security services, last weekend's sabotage of train cables in northern Germany was a "politically motivated act". This is reported by German media. They did not disclose why the security services think this. On Saturday morning, rail traffic in northern Germany was halted for hours after the railway's essential radio communications cables were cut. The fiber optic cables were also damaged, causing the backup system to fail. Offenders with inside knowledge The security services assume perpetrators with insider knowledge. Germany has in the past experienced politically motivated acts of sabotage, recalls Der Spiegel...