Can the Army accept training in how to handle emotions? Chief of Staff General George Casey says he's not sure, but classes are set to begin for 1500 sergeants. Depression, post-traumatic stress disorder and suicide are just some of the issues facing about one-fifth of the soldiers returning from Iraq and Afghanistan. Now the Army plans to require training in emotional resiliency for all of its 1.1 million personnel. Benedict Carey reports for the New York Times.