NASA just spent hundreds of millions of dollars to send a rover to Mars. For 300 million, do you think the Mars rover has spinner rims and a DVD player?

What if Martians vandalized our $300,000,000 golf cart? Would that start a war? I don't think the Earthlings would always win out these inter-planetary battles like we do in all the movies. (By the way, how the African tribes brought down one of the mother ships in Independnce Day using only their spears, I'll never know. Still like the movie though.) Not to sound overly negative, but I'm sure if aliens wanted to attack Earth, we would lose. We build rovers to look at their dirt and rocks. They are probably building some sort of nuclear-laser weapon. Seriously, if they have the technology to build a spaceship that can reach our planet, while we are working on technology to put a fax machine into a cell phone, which side do you think would have an advantage in battle?