In a new statement, the TSA placed blame on passengers, claiming that individuals are at fault for showing up to checkpoints unprepared. “Individuals who come to the TSA checkpoint unprepared for a trip can have a negative impact on the time it takes to complete the screening process,” the agency said in a press release, which also included travel tips to help cut down on delays. The release also blamed the uptick in wait times on shrinking staff and a rise in travelers. Chicago’s O’Hare Airport, for instance, has seen an 8 percent rise in travelers since the start of