Is it wise for us to send signals out to space, with the possibility of an alien civilization deciding to turn our planet into a burned-out cinder? All civilizations would attempt to hide in radio silence if we knew with certainty there were malevolent forces in space. We’ve been screaming our existence to the cosmos for almost one hundred years. Any extraterrestrials within a one hundred light year radius of us would receive a barrage of radio signals from our direction. How much time do we have left before we are found? Tonight on Ground Zero with Clyde Lewis and guest, Jason Quitt, 7-10 pm, pacific time on groundzeroplus.com. Call in to the LIVE show at 503-225-0860.