A look at how Yemen's brutal civil war is creating a market for prosthetic limbs. Each is missing a vital part of their body – a hand, a leg, an arm. Inside that building is new hope for each: Prosthetic limbs are being cut, carved, melted and molded. Young patient recently outfitted with a new leg waits for his training session outside the Ma'rib prosthetics center in Yemen (Fox News/Hollie McKay) "Sometimes I go to my office to cry for each of these miserable stories," Dr. Haitham Ahmed Ali Ahmed, a Sudanese volunteer with Physicians Across Continents, told Fox News. "It isn't fair, but we do whatever we can to give them another chance."