Embracing the Prime Directive

In our defense, in a few billion years they would have had weapons of mass destruction, and no one wants the axis of evil to extend from the earth to Mars. That's just f-ing confusing.

"WASHINGTON (AP) -- Two NASA space probes that visited Mars 30 years ago may have found alien microbes on the Red Planet and inadvertently killed them, a scientist is theorizing.

The Viking space probes of 1976-77 were looking for the wrong kind of life, so they didn't recognize it, a geology professor at Washington State University said." (CNN)