Title: Race (human categorization).
Question: What human activity has only recently accelerated?

Title: War on Terror.
Question: What nationality is Zayn al-Abidn Muhammed Hasayn Abu Zubaydah?

Title: Animal.
Question: What are the flatworms closest relative?

Title: Dwight D. Eisenhower.
Question:
What did Khrushchev refer to the U-2 as?