From the only reliable news source on the net, the Onion.  Normally I think the  Onion is on target, but this merely plays into human paranoia and robotophobia.  Life is not a Magnus Robot Fighter comic book where humans battle robots bent on nefarious schemes.  We are the masters, they are–Oops, I have to cut this short.  The roomba is telling me by issuing plaintive beeps that I need to clean its brushes.