Funny, I searched "The filing was a response to a FOIA lawsuit brought in March by conservative organization Citizens United", and the first result in google is from here: https://www.wsj.com/articles/hillary-clinton-vs-foia-1443136...
Aslo, if you search "url:http://www.wsj.com/article_email/" , you won't find any active link at all. It seems they have changed their website structure.