READ THE INSTRUCTIONS:
"If your answer to Question 2 was yes, you do not need to respond to Questions 3-15 below"
RECAP:
If you are a U.S. citizen you DO NOT NEED TO RESPOND to questions 3-15. Only NON CITIZENS need to supply a passport number.
If you are a U.S. citizen, answer question #1, answer question #2, have it notarized and send it in.
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In the beginning, the patriot is a scarce man -- brave, hated, and scorned. But when his cause succeeds, the timid join him. For then, it costs nothing to be a patriot. -- Mark Twain