Melanie Bloom never envisioned herself taking center stage on an important public health issue. But after her husband, NBC correspondent David Bloom, died in Iraq from complications related to deep-vein thrombosis, she felt the need to speak out. Since her husband's death, Mrs. Bloom has joined the coalition to prevent deep-vein thrombosis. She is participating in a national public education campaign with a simple message: know what triggers d-v-t and talk to your doctor if you think you're at risk. Risk factors and expert insights included as well. Viewers are encouraged to go to preventdvt.org for more info and assessment tool.