Although the point may hold some truth, be careful where you get information from. This article comes from a group that is very anti-immigrant. You wouldn't know it from their "Low immigration, pro immigration" motto, but they put out some seriously biased reports. Including the link you provided. Their first sentence should give you some clue:

"USCIS statistics released Wednesday reveal how seriously the new Deferred Action for Childhood Arrivals (DACA) amnesty has slowed work on all other agency programs."

We all know well that DACA is not an amnesty (I wish it was), but they insist on calling it that throughout. Either they are very, very misinformed or they are trying to sway their audience. And I doubt they are misinformed that badly. Either way, they are bad news.

I know I ranted a little bit, but here's a link to more info on the "CIS". :

http://www.splcenter.org/publication...ent-think-tank