Carnival Booth: An Algorithm for Defeating the Computer-Assisted Passenger Screening System In our paper, we show that although these intuitive foundations might be compelling, their implementation in CAPS is flawed. That is to say that any CAPS-like airport security system that uses profiles to select passengers for increased scrutiny is bound to be less secure than systems that randomly select passengers for thorough inspection. Using mathematical models and computer simulation, we show how a terrorist cell can increase their chances of mounting a successful attack under the CAPS system as opposed to a security system that uses only random searches. Instinct may suggest that CAPS strengthens security, but it in fact introduces a gaping security hole easily exploitable by terrorist cells.