Transitioning to Iraqi control was a logical option for the long run.

WSJ: Our Generals Almost Cost Us Iraq

Autonomous driving in slow traffic is a logical combination of adaptive cruise-control and the lane-keeping systems, already available in some vehicles, which either warn the driver if the car starts to drift out of lane, or apply corrective steering to keep it in lane.

ECONOMIST: Inside story

The logical conclusion from that important fact alone means that our uniquely out-of-control costs will remain out-of-control.

FORBES: The Best Jobs Program? Full Repeal Of ObamaCare

Overall, it's a logical system that stays faithful to how proper cameras work, and it's essential for creative control, but compared to physical dials it's still very tricky to hit good manual settings quickly or in response to changing conditions -- not least because the preview of the shot is obscured by all the dials and, well, there's just so much tapping.

ENGADGET: Samsung Galaxy Camera review: a 21x compact shooter brought to life by Android