I would have a more open mind.
WND is written by people with an agenda, who have shown no particular fealty to the facts in any matter in which they have a vested interest.
The DHS is an official department of the United States which is tasked with investigating criminal activity and providing evidence for trials.
So yes, I give more credence to the DHS report than I do to WND. Of course, WND's facts on the rare occasions that they provide a fact are often from the DHS reports. So they believe them when it's convenient.
My real reason for skepticism of WND is that whenever someone posts a WND article I can trivially show how they have twisted the facts and made up conclusions without basis in order to push their agenda. I post these regularly, and while I am vilified for that with name-calling and the like, nobody has refuted my objections to the articles.