FYI the travel ban and the uncertainty around it has resulted in reduced travel from U.S. to London, Paris, and other cities with large immigrant Muslim populations. This has resulted in super cheap airfare to those cities: Atlanta direct to London, round trip, for ~ $470

Obviously, people from the 7 countries affected are not traveling out of the country for risk of not being able to get back in. This has resulted in a dip in overall travel to European cities with large immigrant Muslim populations.

Not trying to be political, just pointing out cheap airline tickets.