Hunh? I'm a bit confused why you've singled This American Life out here.

Mike Daisey is an interesting case, and someone who published a lot on the story he fabricated in a lot of different outlets. This American Life were the ones were simply the ones who confronted Daisey directly and publicly. Jonah Lehrer, the extent to which he was a contributor to TAL, was certainly not a frequent contributor (in fact I don't remember which of their episodes he's been on at all), but he is much more associated with his magazine work.

Actually i checked This American Life's site. They don't have Jonah Lehrer listed at all (although they do have a colleague of mine listed twice under misspellings of her name): http://www.thisamericanlife.org/radio-archives/contributor