Previously , the U.S. did not disclose whether a stopped traveler was on the list or why . But facing legal pressure from the ACLU , the Obama administration has enacted a new policy to let Americans know if they are on the list . Comment: However , the government has not promised to reveal why in all cases - citing possible national security threats . Last fall there were about 64,000 people on the no-fly list , and Americans made up approximately 5 per cent .
Previously , the U.S. did not disclose whether a stopped traveler was on the list or why . But facing legal pressure from the ACLU , the Obama administration has enacted a new policy to let Americans know if they are on the list . Grounded Americans are also now allowed to inquire about how they got on the list . However , the government has not promised to reveal why in all cases - citing possible national security threats . Last fall there were about 64,000 people on the no-fly list , and Americans made up approximately 5 per cent .