Austria’s chancellor has called a meeting of the National Security Council following the arrest on espionage charges of a person who worked for the country’s now dissolved domestic intelligence agency. It is necessary to prevent “Russian spy networks” from threatening Austria “by infiltrating or exploiting political parties or networks,” Chancellor Karl Nehammer of the conservative Austrian People’s Party (ÖVP) announced on Monday. The council is due to meet on April 9. On Sunday, the Vienna State Court imposed pre-trial detention on a a former employee of the now dissolved Federal Office for …