. . . . . . . . . . . . . . . "ATC modernization and NextGen near-term achievable goals : hearing before the Subcommittee on Aviation of the Committee on Transportation and Infrastructure, House of Representatives, One Hundred Eleventh Congress, first session, March 18, 2009"@en . . . . . . . . . . . . "ATC modernization and NextGen near-term achievable goals hearing before the Subcommittee on Aviation of the Committee on Transportation and Infrastructure, House of Representatives, One Hundred Eleventh Congress, first session, March 18, 2009"@en .