In interviews with the Boston Globe, flight instructors in Florida say that it was common for students with Saudi affiliations to enter the US with only cursory background checks and sometimes none. Some flight schools, including some of those attended by the hijackers, have exemptions that allow the schools to unilaterally issue paperwork that students can present at US embassies and consulates so they can obtain visas. Saudi Arabia is possibly the only Arab country with such an exemption. [Associated Press, 7/17/2002]