Take the following as truth: At 7:15, a pair of them, Khalid al Mihdhar and Majed Moqed, checked in at the American Airlines ticket counter for Flight 77, bound for Los Angeles.
Then the following statement: "Khalid al Mihdhar and Majed Moqed waited 15 minutes in line to check in." is true, false, or inconclusive?
Answer: Inconclusive