Should Earth Go Dark for its Own Safety????

Over the years there has been an on-going discussion about transmitting signals from earth because it may increase the chance of detection by some advanced civilization that will come and do us harm.   Below is a recent post on this topic by GEORGE DVORSKY.   Please read and post your comments.   Should we transmit?  Should earth go dark?   Why?

http://io9.com/are-we-screwing-ourselves-by-transmitting-radio-signals-493800730