Further attacks on politicians in Germany have rattled the country and prompted renewed outrage from leaders, after Berlin’s former mayor was assaulted in a library. Franziska Giffey, the leader of the Social Democrats (SPD) in Berlin who currently serves as the city’s economy minister, was treated in hospital for slight injuries after being hit over the head with a heavy bag on Tuesday afternoon. In a separate attack on Tuesday night, a Green Party council candidate was assaulted and spat on by two assailants while putting up campaign posters in Dresden. Those assaults are the latest in a str…