What was the impact of the September 11th attacks on the tourism and travel industries?

There was a major impact because people didnt really want to get on a plane because they didnt know if something succ as a terroroist event would happen again. When that many people stopped going to the U. S they lost alot of tourist money from buying plane tickets to tourist items such as post cards, the food, the hotels, and the gas money.

Cost increased because airlines had to improve security