For those posting comments claiming Trump's immigration order is a continuation of an Obama policy here are the facts.

Trump's order has some roots in Obama's visa-waiver program. The U.S. allows the citizens of more than 30 countries to visit for short stays without a visa under this program. But that visa waiver does not apply if a citizen of an eligible country has visited Iran, Iraq, Libya, Somalia, Sudan, Syria, or Yemen . Under measures put in place by the Obama administration, those individuals had to apply for a visa at a U.S. consulate and were subject to more scrutiny.

Being required to apply for a visa is not the same as being barred from entering the country.