The German Ministry of Defence says it believes an internal conversation between senior air force officers has been intercepted. “According to our assessment, a conversation [between air force officials] has been intercepted. We are currently unable to say with certainty whether changes have been made to the recorded or transcribed version that is circulating on social media,” a ministry spokeswoman told dpa in Berlin on Saturday. A 30-minute audio recording of the conversation between German air force officers was published on Friday by the head of the Russian state broadcaster RT, Margarita …