[joshuahedlund]

Here you go, straight from the "outside group": http://dailycaller.com/2013/05/14/irs-sent-confidential-info...

[casual_slacker]

Here's the original source from your article:

http://www.propublica.org/article/irs-office-that-targeted-t...

I'm not convinced it's a targeting of opposing political groups by the white house though. If Propublica requested papers, and got them even if they shouldn't have, that's a bureaucratic error.