stylistic:tone
Implementation at airports

People from the countries mentioned in the order with valid visas were turned away from flights to the U.S. Some were stranded in a foreign country while in transit. Several people already on planes flying to the U.S. at the time the order was signed were detained on arrival. On January 28 the American Civil Liberties Union (ACLU) estimated that there were 100 to 200 people being detained in U.S. airports, and hundreds were barred from boarding U.S.-bound flights. About 60 legal permanent residents were reported as detained at Dulles International Airport near Washington, D.C. Travelers were also detained at O'Hare International Airport without access to their cellphones and unable to access legal assistance. The Council on American-Islamic Relations (CAIR) offers free legal help to travelers who experience problems with the "ban". Attorneys are stationed, around the clock, at the Chicago airport and CAIR also encourages travelers to register with them, prior to travel. The Department of Homeland Security (DHS) said on January 28 that the order was applied to "less than one percent" of the 325,000 air travelers who arrived in the United States. By January 29 DHS estimated that 375 travelers had been affected with 109 travelers in transit and another 173 prevented from boarding flights. In some airports there were reports that Border Patrol agents were requesting access to travelers' social media accounts.