dr. dillingham. >> chris btu mr. chairman, mr. costello, mr. mica, mr. duncan, other members of the subcommittee. the gao has been monitoring the nextgen trees protection system for the subcommittee since planning for the initiative began in 2003. we've made numerous recommendations to faa to address the delay in the acquisitions, improve its business process the and to focus on accountability and performance. over the last two years, faa has taken several steps instituting many changes and implementing several of our recommendations to address these issues. while the initial planning focus on having nextgen in place by 2025, more recently faa has emphasized the importance that can be implemented in the midterm which the agency now defines 32020. our work indicates faa views the emphasis as the means to respond to industry skepticism about its ability to implement nextgen to build support for the investments and quickly address the existing inefficiencies and the lay in the national airspace system. overall, faa is making progress in implementing nextgen