According to the Airline Quality Rating 2007 report, airline hassles in the United States have increased since 2005.[1] The rate of complaints, on the other hand, have remained roughly the same, with 0.88 complaints per 100,000, half of which were due to problems with flights or baggage. This may be due to passengers being more forgiving since 9/11.[2] However, there is also criticism about whether the number of official complaints truly reflects the experience passengers are encountering, considering the difficulty passengers have in finding out how to issue a formal complaint.[3] Furthermore, complaints about airline complaints have increased in the US, showing that those who are able to complain, are dissatisfied with the results.[4]