As thousands of unoccupied children arrive at the southern border, Illinois' Senior Senator says the problem is "serious" and "heartbreaking." According to U.S. Senator Dick Durbin, children are arriving at the border three times as many as in the past.

CNN reports, U.S. Border Patrol detained 9,300 children in February, up almost 4,000 from January. Senator Durbin said one way to fix the problem is to have the U.S. work with surrounding countries to encourage their citizens to stop crossing the border illegally.