Reaction amongst pilot groups was mixed, as the requirement would mean a change of strategy—especially for crews that commute to their base. Prior to the update, pilots could commute (which sometimes happens on the day before or after a trip) and take advantage of the special and expedited screening processes (which, among other elements, allow them to carry liquids and gels beyond typical passenger restrictions, as they are typically unable to check bags). The process relies upon the ability of TSA officials to make positive identification of crewmembers through use of their security badge and ties to the person's employment status with participating airlines. The program also benefits the traveling public, as crews and commuting crews are removed from regular passenger screening lanes at airports. Pilots should direct any questions regarding the change to their airline or pilot union, and look for news on the changes on the Known Crewmember website.