Sky Above SoCal Among Most Crowded in U.S.

Southern California airports are some of the busiest in the nation. On average, the US sees one mid-air collision a month. 60 percent of the time they are fatal, like Monday’s deadly plane collision, and many of them happen within five miles of an airport. Chuck Henry reports for the NBC4 News at 6 p.m. on April 30, 2013.