  We propose a search for sources of directed energy systems such as those now
becoming technologically feasible on Earth. Recent advances in our own
abilities allow us to foresee our own capability that will radically change our
ability to broadcast our presence. We show that systems of this type have the
ability to be detected at vast distances and indeed can be detected across the
entire horizon. This profoundly changes the possibilities for searches for
extra-terrestrial technology advanced civilizations. We show that even modest
searches can be extremely effective at detecting or limiting many civilization
classes. We propose a search strategy that will observe more than 10 12 stellar
and planetary systems with possible extensions to more than 10 20 systems
allowing us to test the hypothesis that other similarly or more advanced
civilization with this same capability, and are broadcasting, exist.
