The hypothetical debates as to wether or not contacting extraterrestrials is a good idea is very intriguing.
We probably shouldn't, lol. Assuming they're not here already.
No point in fretting over it now though, we've been broadcasting for a century and have sent ridiculous quantities of materials flying across our local area. Anybody paying attention knows we are here.
RE: How a NASA Spacecraft May Help Aliens Find Earth The pulsar maps on the Voyager probes pinpoint our location in the galaxy—even as some experts debate the pros and cons of signaling ET.