Why are these Aliens hiding?

[Itheblaze]

All these crop circles, mutilations, abductions, implants, why don't they just out right show up? Have a face to face talk with us?

 

[GLaDOS]

If you were mutilating, abducting, and implanting humans, all the while being a skinny fragile alien, would you make yourself vulnerable to a swift kick in the gluteous marsimus?

 

[diecreeperdie]

Crop circles are a hoax, if it was a message why not carve it into the square out side the Kremlin or on the grass of the Whitehouse or outside Buckingham palace?

 

[Time Will Wipe Us Out]

There is the distinct possibility that there is nothing out there hiding. With all the supposed alien activity over the centuries, it is impossible to imagine that not a single piece of alien technology has been misplaced for us to find.

Moz