A report by Frommer’s states that
Experts across the travel industry are warning that masses of tourists are being scared away from visiting the United States, and the loss of tourism jobs could be devastating.
So far, the observed drop is about 7%, and is not limited to travel from Muslim countries:
Apparently, an attack on one group of tourists is regarded as an assault on all
the report continues. Affected are business travel as well as leisure travel, and the projected losses for this year are in the billions of USD and in the thousands of jobs.