1. Yes; They will discover us; They might kill us all!
2. Sure, what's a little more government spending; We should send music...
3. A processor is a terrible thing to waste.
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.