was written by Maj . Ali Hasan 's colleagues at Walter Reed . NPR says it has a copy of the memo ; CNN can not confirm authenticity . CNN could not corroborate the authenticity of the memo nor reach Moran for comment . Memo says ` ` ' has serious concerns '' about Hasan 's work ' .
was written by Maj . Ali Hasan 's colleagues at Walter Reed . NPR says it has a copy of the memo ; CNN can not confirm authenticity . Memo says ` ` ' has serious concerns '' about Hasan 's work ' .