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

Cost increased because airlines had to improve security

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.