chris hamilton, west virginia coal association, senior vp. thanks for joining us.me back. >> thank you, david. david: liz? liz: you might think the conditions that led to the housing firmly in the rear rear-view mirror as that won't happen again but that may not be entirely true. a former fannie mae executive vp is telling us why some trend in the bond market are now raising red flags. >>> watch out gopro, you might be the hottest thing in camera technology right now but a former leader in the industry coming back with a vengance and all the accessories along with it. we've got the ceo. stay tuned. ♪ hard it can be...how ...to breathe with copd? it can feel like this. copd includes chronic bronchitis and emphysema. spiriva is a once-daily inhaled... ...copd maintenance treatment... ...that helps open my airways for a full 24 hours. you know, spiriva helps me breathe easier. spiriva handihaler tiotropium bromide inhalation powder does not replace rescue inhalers for sudden symptoms. tell your doctor if you have kidney problems, glaucoma, trouble urinating, or an enl