Markham Gray's face had paled in horror. "But why?" he blurted. "Why not let them go in peace? All they've wanted for centuries is to escape us, to have a planet of their own." SupSpaceCom Michell eyed him tolerantly. "You seem to have been taken in, Mr. Gray. Once they've established themselves in their new world, we have no idea of how rapidly they might develop and how soon they might become a threat. Even though they may be peaceful today, they are potential enemies tomorrow. And a potential enemy _is_ an enemy, who must be destroyed." Gray felt sickness well through him "But ... but this policy.... What happens when man finally finds on his borders a life form more advanced than he--an intelligence strong enough to destroy rather than be destroyed?" The tolerance was gone now. The SupSpaceCom said coldly, "Don't be a pessimistic defeatist, Gray." He turned to the admirals and generals of his staff. "Make all preparations for the attack, gentlemen." End of the Project Gutenberg EBook of Potential Enemy, by Mack Reynolds