What occurred at Frankfurt Airport on March 2, 2011?

• A. A protest with no casualties.
• B. A data breach of airline reservation systems.
• C. A USAF bus attack at the airport with 2 killed and 2 wounded; suspect apprehended by German police.
• D. A plane crash in the terminal.

Answer: (C)

This item tests recall of a specific security incident at a major transportation hub involving military personnel. On March 2, 2011, a gunman opened fire on a bus carrying U.S. Air Force personnel outside Frankfurt Airport, killing two and wounding two others. German police apprehended the suspect at the scene. This is an armed attack on a transport node with casualties and an immediate police arrest, not a protest, data breach, or an aviation accident.