11000 #planes in the #sky right #now. Amazing they don't all
  #crash into each other. Takes a lot of #human involvement to
  keep it very #safe
  [vine id = "MVJhrxZAdJB"]
  11000 #planes in the #sky right #now. Amazing they don't all
  #crash into each other. Takes a lot of #human involvement to
  keep it very #safe

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