Updated at 6:47 p.m. ET
President Trump's executive order on immigration is sending shockwaves across the U.S. and the globe.
Just one day after he enacted a ban on the admittance of all refugees to the United States, temporarily freezing immigration from seven mostly Muslim countries, confusion, chaos fear are roiling international airports. Refugees are being barred from boarding U.S.-bound flights. Immigrants are being detained at U.S. airports.
Protests are rising up at JFK and Los Angeles airports. Thousands of leading academics have signed a petition denouncing Trump's actions. And top technology companies whose staff have been affected, are criticizing the move by the president.

To cement the exigency of this move, on Saturday afternoon the State Department issued the following statement.
"Urgent Notice: Executive Order on Protecting the Nation from Terrorist Attacks by Foreign Nationals
JANUARY 27, 2017
Urgent Notice
Per the Executive Order on Protecting the Nation from Terrorist Attacks by Foreign Nationals signed on January 27, 2017, visa issuance to nationals of the countries of Iraq, Iran, Libya, Somalia, Sudan, Syria and Yemen has been suspended effective immediately until further notification. If you are a citizen of one of these countries, please do not schedule a visa appointment or pay any visa fees at this time. If you already have an appointment scheduled, please DO NOT ATTEND. You will not be permitted entry to the Embassy/Consulate. We will announce any other changes affecting travelers to the United States as soon as that information is available."