A CNN investigation found that a VA suicide hotline was sending callers to voicemail. Drew Griffin has more. <script type='text/javascript' src='http://z.cdn.turner.com/cnn/van/resources/scripts/van-widgets.js'></script> <div data-cnnvansinglewidget data-affiliate='gantdaily' data-videoid='us/2016/02/18/va-suicide-hotline-griffin-lv.cnn' data-size='auto' data-autostart='true'></div>