." >> mary schiovo discusses the closing of air traffic control towers due to budget cuts and the impactn a deed and job losses. louise radnofsky looks at how premiums and health care will change this year because of the affordable care act. the irs and the problem it has faced and its movements.

mary schiovo, where are these towers located? guest: the towers are located all over the country. most of them are what we call contract hours. many years ago -- in fact, i worked on this when i wasn't rector general -- we determined the towers had such little activity that they were selected for a program called contract hours where the tower activities were actually performed by contractors and the faa days the contractor to perform the air traffic control services for the united eight government. -- united states government. there are actually 450 contract hours, 514 total towers and the rest operated by the faa. here is the the difference, over 19,000 airports, almost 6000 of them are public use airports, but we only have 514 towers. most aviation goes on without towers. in closing these contract hours, it does not mean the airport is closed. it means the pilots will have to fly as they are trained him a without an air traffic control tower. in fact, that is how you learn to fly when you get a private license. host: described the scene at airports that do not have air affic nt