No-fly list

The No Fly List is a list created and maintained by the United States federal government's Terrorist Screening Center (TSC) of people who are prohibited from boarding commercial aircraft for travel within, into, or out of the United States. The list has also been used to divert aircraft away from U.S. airspace that does not have start- or end-point destinations within the United States. The number of people on the list rises and falls according to threat and intelligence reporting. There were 10,000 names on the list in 2011, 21,000 in 2012, and 47,000 in 2013.

The list—along with the Secondary Security Screening Selection, which tags would-be passengers for extra inspection—was created after the September 11 attacks of 2001. The No Fly List, the Selectee List, and the Terrorist Watch List were created by George W. Bush's administration and have continued through the successive administrations of Barack Obama and current President Donald Trump. Former U.S. Senate Intelligence Committee chair Dianne Feinstein said in May 2010: "The no-fly list itself is one of our best lines of defense." However, the list has been criticized on civil liberties and due process grounds, due in part to its potential for ethnic, religious, economic, political, or racial profiling and discrimination. It has raised concerns about privacy and government secrecy. It has also been criticized as costly, prone to false positives, and easily defeated.

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