That is a good story. It goes to one extreme. This story goes to the other extreme:
2016 Ohio State University attack: A car ramming attack and mass stabbing occurred at 9:52 a.m. EST at Ohio State University(OSU)'s Watts Hall in Columbus, Ohio. The attacker, Somali refugee Abdul Razak Ali Artan, was shot and killed by the first responding OSU police officer, and 11 people were hospitalized for injuries. According to authorities, Artan was inspired by terrorist propaganda from the Islamic State of Iraq and the Levant and radical Muslim cleric Anwar al-Awlaki.
And somewhere in the middle we have the rest. America can't let everyone in who wants in so I would think we should use a system that determines what value can someone bring to this country if they want to immigrate.