Iranian authorities on Tuesday closed down the last language institute certified by the German embassy, local media said, in retaliation to the shuttering of Islamic centers in the European country. A report by Nournews.ir, believed to be close to Iran’s security bodies, published a photo of police forces taking down the sign showcasing the establishment’s name. The Institute For Teaching German Language was established in the capital in 1995 to teach the German language to Iranians, said the German embassy’s website. Mizanonline.ir, a news website affiliated with the country’s judiciary, said…