This is largely a moot point. All names of departures and international arrivals are sent to the Department of Homeland Security via the Secure Flight/APIS data pipeline. This returns to the airline authorization to board, select for additional screening (SSSS on boarding pass), or inhibit boarding (unless overridden by a TSA call center), as well as, for international flights, authorization for who can even overfly the country.
Intelligence agencies are also highly interested in things that don't involve the DHS or have a flight involving a destination in the USA. Such as obtaining PNRs for people who buy flights from Dubai to Mogadishu.
