Neutrinos?

[jude_rook]

Occasionally someone frets about how the radio and TV signals we've been broadcasting over the past century could be a signal to some alien species saying, "Fresh meat over here!"  But what if no one has been paying attention to our signals because all the advanced races have a more efficient way of sending signals over interstellar distances?  A way that involves, not the familiar wavelengths of the EM spectrum, but -- neutrinos?

http://www.economist.com/node/18526871?story_id=18526871&fsrc=rss

http://arxiv.org/abs/0805.2429

If there is anything to this model for communication, I humbly suggest we scour the local area for any possible use by other species before we start using it ourselves!