…are not all from this planet.
“Almost half of the DNA found on the [New York subway] system’s surfaces did not match any known organism and just 0.2 percent matched the human genome.”
Try Epsilon Eridani. Maybe Men In Black was a documentary, eh?
Via Instapundit.
THE TEXAS SCRIBBLER 
Dunno. I have been in NY what? twice only. But even so, this sounds quite expected to me.
I’ve only been there twice myself. First time I was only 8 so maybe it shouldn’t count. But this would be weird anywhere.