In a separate incident, Jackson apologized to his constituents in September 2010 after the Chicago Sun-Times reported a Chicago businessman told federal investigators that Jackson had asked him to pay for a restaurant hostess to fly between Washington and Chicago several times.

CNN: STORY HIGHLIGHTS

We'd like to be able to tag and share interesting locations for later research, or bring up predicted future traffic information so we could plan trips better, or contribute back restaurant ratings on the fly or... you get the idea.

ENGADGET: Dash Express review

The department store can discover that your waistband has expanded an inch or so since last year, the airline knows that you usually fly with its main rival, the restaurant remembers that you drink Pinot Grigio.

ECONOMIST: Managing customers