To Stop Afghan Insider Violence Trust 'Absolutely Essential'

Aired: 9/5/2012 | 0:04:58 | Clip
Margaret Warner talks to Ret. Army Lt. Col. John Nagl, who commanded training of Afghan soldiers, about the challenge of enforcing the 2014 deadline to get combat troops out of Afghanistan, "basic human infrastructure" and educational hurdles, and how the Iraq war diverted resources from training Afghan forces for years.

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