![SE on Twitter: "@sciam “contact as symbol” proposed by sociologist Bill Mathers of RAND in his book, The 100,000-Light-Year Iron Curtain: SETI Sociology" / Twitter SE on Twitter: "@sciam “contact as symbol” proposed by sociologist Bill Mathers of RAND in his book, The 100,000-Light-Year Iron Curtain: SETI Sociology" / Twitter](https://pbs.twimg.com/media/CC0gpR3WIAAyVp3.jpg)
SE on Twitter: "@sciam “contact as symbol” proposed by sociologist Bill Mathers of RAND in his book, The 100,000-Light-Year Iron Curtain: SETI Sociology" / Twitter
![Life behind the Iron Curtain: Inside abandoned Soviet military bases, ghost towns and a hidden city once home to thousands - World News - Mirror Online Life behind the Iron Curtain: Inside abandoned Soviet military bases, ghost towns and a hidden city once home to thousands - World News - Mirror Online](https://i2-prod.mirror.co.uk/incoming/article11200100.ece/ALTERNATES/n615/MG-roadster.jpg)
Life behind the Iron Curtain: Inside abandoned Soviet military bases, ghost towns and a hidden city once home to thousands - World News - Mirror Online
![Life behind the Iron Curtain: Inside abandoned Soviet military bases, ghost towns and a hidden city once home to thousands - World News - Mirror Online Life behind the Iron Curtain: Inside abandoned Soviet military bases, ghost towns and a hidden city once home to thousands - World News - Mirror Online](https://i2-prod.mirror.co.uk/incoming/article11486977.ece/ALTERNATES/s615b/PAY-Abandoned-Soviet-Military-Bases.jpg)
Life behind the Iron Curtain: Inside abandoned Soviet military bases, ghost towns and a hidden city once home to thousands - World News - Mirror Online
![Life behind the Iron Curtain: Inside abandoned Soviet military bases, ghost towns and a hidden city once home to thousands - World News - Mirror Online Life behind the Iron Curtain: Inside abandoned Soviet military bases, ghost towns and a hidden city once home to thousands - World News - Mirror Online](https://i2-prod.mirror.co.uk/incoming/article11486978.ece/ALTERNATES/s615b/PAY-Abandoned-Soviet-Military-Bases.jpg)