What security procedure did Richard Reid cause?

• A. Remove belts
• B. Pass through body scanner
• C. Take off your shoes at screening
• D. Put bags through scanners

Answer: (C)

The main idea being tested is how a real incident revealed a vulnerability in airport security and led to a specific screening change: travelers must remove their shoes during screening. Richard Reid attempted to ignite a bomb hidden in his shoe on a flight in 2001, demonstrating that footwear could conceal dangerous items. In consequence, authorities began requiring people to take off their shoes so footwear could be inspected for explosives. The other options refer to different parts of security screening that aren’t tied to this particular incident—the shoe removal policy is the notable change driven by Reid’s attempt.