Eyebrows cocked? Smirk at the ready? Then you, sir, are qualified to tack on wry analysis to the day's news at AllThingsD.com. Good thing Peter Kafka, Kara Swisher's latest hire at the Dow Jones-backed tech blog, is a continent away from John Paczkowski, Swisher's incumbent snark machine. Put the two in the same office, and they might just spend all day raising their eyebrows at each other.