Of Course It has to the universe it too vast and we are too egotistical to say that we are the only ones. Same concept when we used to believe the earth was the center of the solar system. Now are we the most intelligent beings in the entire Universe?? I think not.
I don't think we should transmit anything our technology frankly sucks at this time. It would never find anything or get intercepted.
I run SETI@home because i think its the coolest attempt to find something out there and the most scientific of all approaches.
SETI@home and Astropulse are funded by grants from the National Science Foundation, NASA, and donations from SETI@home volunteers. AstroPulse is funded in part by the NSF through grant AST-0307956.
