Are Afghan parolees such as the one that plotted a terrorist attack in Oklahoma vetted before entering the US?

According to the Department of Homeland Security, Afghan nationals arriving through Operation Allies Welcome – such as Nasir Ahmad Tawhedi, who plotted the attack – are only granted humanitarian parole into the United States following required screening and vetting. AllSides highlights content from Gigafact, a network of newsrooms that respond to online claims. View the full fact brief on Oklahoma Watch.