The refusal of the regional airports authority to deal quickly and publicly with recent controversies could lead to the complete demise of the board overseeing the $6 billion Dulles Rail project, the Dulles Toll Road and two airports, three board members warned in a letter to their chairman.

“The board’s unwillingness to address these issues may well lead to the end of [the Metropolitan Washington Airports Authority] as we currently know it,” the three members, Tom Davis, Frank Conner and Todd Stottlemeyer, wrote. “We have little or no moral authority or credibility in managing the Dulles Rail Project as a board or in establishing toll rates for those who will be using the Dulles Toll Road.”