Many Americans in "questionable businesses" are having accounts canceled and not able to get new ones, in some cases. This could be used against legal industries not just the adult entertainment. This is appearing as a overreach into "legislating morality". With members of congress having contacted the DOJ and it still continues.
Links to more info: http://www.washingtonpost.com/blogs/wonkblog/wp/2014/04/16/operation-cho...
http://dealbook.nytimes.com/2014/01/26/justice-dept-inquiry-takes-aim-at...
http://www.americanbanker.com/bankthink/operation-choke-point-way-out-of...