Updated 9/17/2013 at 8:03pm

(CNN) -The Washington Navy Yard shooting could possibly have been prevented if tougher background checks were in place, President Barack Obama said on Tuesday, raising new concern about the frequency of mass shootings.

“The fact that– we do not have a firm enough background-check system– is something that makes us more vulnerable to these kinds of mass shootings. And, you know, I do get concerned that this becomes a ritual that we go through every three, four months, where we have these horrific mass shootings,” he said in an interview with Telemundo.
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