Paul Hertz, Director of the Astrophysics Division of NASA, shared at IMGUR this statement about aliens on, Sept 29,

We are never going to discover aliens, aliens are going to discover us and when they do it won´t be pretty. You can take that to the bank. There certainly wont be enought time for press conferences about it. You probaly wont have the time to blink. “Be carefull what you wish for. if you guys knew even a fraction of the stuff we do, you will never sleep again. I promise you that" 

Paul Hertz Director of the astrophysics divison at nasa. Paul Hertz was named Director of the Astrophysics Division in the Science Mission Directorate at NASA in March 2012. He is responsible for the Agency’s research programs and missions necessary to discover how the universe works, explore how the universe began and developed into its present form, and search for Earth-like planets. Paul Hertz Statement here, WTF!