missing at reagan national airport in the d.c. area. the federal aviation administration has actually hired thousands of new controllers. a 2010 faa report says 7,000 just in the past five years. that brings levels up to more than 15,000. and in the last decade flight volume has fallen by 21%. the faa say it's not expected to return to those levels in the near term, though flight frequency will increase. some on capitol hill are questioning costs in light of calls to hire more controllers. transportation and infrastructure committee chairman in a statement john micah says in difficult financial times for the nation, it is critical that we utilize our limited resources in the most responsible fashion without compromising safety. officials are preparing for a massive wave of retirements. a spokesman says we are hiring controllers to replace those that are retiring, and that number that we're hiring are