The article doesn’t really say anything of substance and neither does it reveal much of anything ... ??? What is the purpose of the article except to speculate ???
I found a link from wapo that had the recordings.
http://usconsumers.org/hawkinsguns/
www.washingtonposthttp://usconsumers.org/hawkinsguns/.com/news/volokh-conspiracy/wp/2015/01/14/operation-choke-point-closes-another-gun-stores-bank-account/