This recall left a trail of media reports, public critique, investigations and huge lessons learnt.

这回忆留下了媒体报道，公开批判的痕迹，调查和巨大的教训。

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Naturally, you'll need a data connection in order to upload media while on the trail -- something that's often hard to find -- but at least the app tells you how poor (or great) your GPS signal is at all times, which is all that's required to keep track of your actual steps.

ENGADGET: Columbia's GPS Pal app for Android and iOS logs your hikes, geotags memories (video)

Sanford famously left the state for five days in 2009, with staffers telling the media he was out hiking the Appalachian Trail.

NPR: Trespassing Accusation Leaves Sanford On His Own

An astute politician may despise the media but knows that the journalists who trail around behind him or her need to report something.

BBC: Mitt Romney's Olympic mishap