Initial screening: Refugees report to the UN High Committee for Refugees (UNHCR), which collects biographical data and interviews them – and then selects fewer than 1 percent of all refugees for possible resettlement.
Secondary screening: A U.S. State Department Resettlement Support Center compiles biographical data and conducts an initial interview.
Biographic security checks: The National Counterterrorism Center, the FBI, the Department of Homeland Security, the Defense Department and the State Department screen the applicants; those with connections to terror groups or serious criminal records are disqualified.
Checks Trump added: To make the vetting even tougher, Trump called on U.S. officials to check applicants' places of employment and names of family members as well as their social media.
The final interview: U.S. Citizenship and Immigration Services interviews candidates for resettlement at least once, and often several times.
Biometric security checks: Refugee fingerprints are checked against terror watch lists.
Medical checks: Those with serious communicable diseases are disqualified.
Cultural orientation: Classes teach refugees to adapt to American life.
Assignment to a U.S. city: Volunteer agencies (or "Volags") such as Catholic Charities decide where each refugee will settle, taking into account family connections and space availability.
Travel: U.S. Customs and Border Protection, along with the Transportation Security Administration, screens refugees against do-not-fly lists.
Resettlement: Refugees travel to America and get settled into their new community by a resettlement agency such as the International Institute of Buffalo or Journeys End Refugee Services.