German investigators searching the Berlin home of Daniela Klette, a suspected leftwing terrorist arrested in February, have secured thousands of pieces of evidence – including weapons and money, police and prosecutors said on Thursday. The search had revealed a Polish assault rifle, a Czech machine pistol and a highly convincing fake rocket-propelled grenade, according to officials from the state of Lower Saxony, which is leading the investigation. They published photos and called on the public to provide any information relevant to the case regarding the provenance of the weapons or where the…