A. The bombs were found after a tip from Saudi intelligence officials. Wealthy Saudi Arabia has sometimes been a reluctant ally in America's global campaign against radical militants. But, it sees its biggest security threat as the al-Qaeda terrorists based in neigboring Yemen, the poorest country in the Middle East.

Q: The suspected bomb-maker, Ibrahim Hassan al-Asiri, is believed to have also made the explosive sewn into the underwear of a young Nigerian who was captured last Dec. 25th as he tried to set off the device on a flight to . . .

A. Atlanta

B. Boston

C. Chicago

D. Detroit

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D. Umar Farouk Abdulmutallab was subdued by fellow passengers after the bomb failed to explode on a flight from Amsterdam to Detroit on Christmas Day. He received training and the bomb from al-Qaeda in Yemen.

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Q: Does Yemen's government oppose or support the United States' efforts against terrorists?

A. Oppose

B. Support

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B. Yemen President Ali Abdullah Saleh's alliance with the West on counter-terrorism since 9/11 has generated widespread resentment in his country. Many Yemenis worry that heavy-handed Western insistence on counter-terrorism objectives will backfire, increasing support for al-Qaeda affiliates.

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Q: Most of the airline hijackers who attacked the United States on 9/11 came from which country?

A. Afghanistan

B. Iraq

C. Saudi Arabia

D. Yemen

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C. Of the 19 hijackers who crashed airliners into New York's World Trade Center, the Pentagon and a Pennsylvania field, 15 came from Saudi Arabia, two from the United Arab Emirates and one each from Egypt and Lebanon.

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