7/24: DOJ steps in to fix New Orleans police; Israel fears Syrian use of chemical weapons

      |The New Orleans Police Department has been plagued by corruption and scandal for decades. Now, as Chip Reid reports, New Orleans Mayor Mitch Landrieu is working with the Department of Justice to completely transform one of the worst police forces in the nation; And, Israel has started issuing new gas masks to citizens living close to the Syrian border. David Martin reports on the increasing concern over Syria's arsenal of chemical weapons.

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