Say the car is trolling along at 60 mph when you come up behind a slower-moving truck.

FORBES: Bentley Arnage T

She's two blocks from her house when police come up behind her.

NPR: Who Wants To Be New Orleans Mayor, Anyway?

To hear that old rumble of steel wheels come grumbling up behind you, to turn and see those green streetcars back on the tracks again is like seeing an old friend who's been away a while.

NPR: Long Desired, Streetcar Returns to New Orleans

And we all know Fox tends to come from behind and end up on top in the demo, with CBS leading in viewers.

CNN: NBC wins premiere week for first time in nine years

Now, I think this trade deal that we just passed -- the Korea Free Trade Act -- shows that we are happy to work with Republicans where they are willing to put politics behind the interest of the American people and come up with proposals that are actually going to create jobs.

WHITEHOUSE: President Obama and President Lee Press Availability

How do agencies come up with the ideas and how do clients know which ones to invest in and get behind?

FORBES: How To Make Amazing Branded Apps

The main idea behind the new U.S. government-led project is to come up with technology for exploring how the brain records, processes, stores and retrieves information.

WSJ: Obama Gives Details of Brain-Research Project

Then others can come along with their own mobile phones and pick up some new tunes as well, leaving a trail of metadata behind them, begging to be analyzed -- in a good way.

ENGADGET: Undersound, a way to trade music on the London Underground