Dr. Steven Greer argues that extraterrestrial civilizations are non-hostile because any civilization capable of routine interstellar travel would have the capability to terminate human civilization instantly if they intended to do so.

Authors

• Person: Not available Organization: The New Yorker
  How the Pentagon Started Taking U.F.O.s Seriously | The New Yorker

Sources

• How the Pentagon Started Taking U.F.O.s Seriously | The New Yorker www.newyorker.com The New Yorker via serper

Referenced by nodes (3)

• extraterrestrial civilizations concept
• Steven Greer entity
• interstellar travel concept