In this task, you are given news articles and you need to generate a highlight, i.e., a short summary, with a maximum length of 10 lines.

Q: (CNN) -- "These types of patients have such disfigurement beforehand they can't eat, they can't breathe properly. It's about functionality," says Dr. Richard Luskin, CEO of the New England Organ Bank. Luskin is referring to the small group of people worldwide who are on waiting lists in hope of a new face, and in the United States at least, they may now have one donated to them more readily. Last month the United Network of Organ Sharing (UNOS), a non-profit organization managing the U.S. organ transplant system, approved the first national policies for the transplantation of limbs, faces and other structures collectively known as "vascularized composite allografts" (VCAs) -- which should make it easier to find donors. As of April 2014, there had been 28 face transplants across the world. Animal attacks, severe burns and gunshot wounds had left these recipients scarred for life, literally, in the one place their scars cannot be hidden -- their face. "Anyone with this disfigurement would argue they're not living, they're surviving," says Luskin. Face transplant recipients: New findings . A growing field . The first face transplant was performed in France in 2005 on Isabelle Dinoire, whose mouth, nose and chin had been chewed away by her dog. Since then the field has grown and transplants involving varying combinations of facial parts have been performed in six other countries, including the United States. As the procedures improve and their safety grows, donor registries and collaborating hospitals will increasingly be asking the question: Would you like to donate your face? Or in the case of the UNOS approval, asking family members of potential donors the sensitive question of whether they will donate the face of their loved one. The UNOS approval will initially be in place temporarily for 15 months to enable public comment, but families of donors will receive extra guidance when it comes to making the decision. "Face transplants remain unique and require very specific criteria such as hairlines and ethnic components," explains a UNOS spokesperson. "Therefore consent should be distinct and individual." "(This) will broaden the donor pool for wait-listed patients across a number of regional and national organ procurement organizations," explains Dr. Eduardo Rodriguez, professor of reconstructive plastic surgery at NYU Langone Medical Center. "A major component for a successful procedure is patient selection on both the recipient and donor," he adds. "The likeliness of a perfect match can be very challenging." But this once-experimental procedure is becoming more widespread and accepted. Richard Norris, from Virginia, received a new face in March 2012 and last month his face was featured on the cover of the U.S. edition of men's magazine GQ. Norris lost most of his facial features after a gun blast, and lost abilities such as his sense of smell. But after surgery at the hands of Rodriguez and his team he can live his life once again. Face transplant patients: Where are they now? Risk of rejection . However, as this mode of surgery becomes a norm, the side effects and risks that come with the life-changing operation are still a concern and a question of ethics. Like any other transplant, there is a risk of the new organ being rejected by the patient's immune system and recipients have to take immunosuppressive drugs for the rest of their lives, putting them at risk of infections and cancer. But unlike many other transplants, replacing a face is not a matter of life and death. The surgery is classed by some as life-changing, not life-saving, which raises questions as to whether this risk is justified. "For heart transplant patients they need a transplant or they will die. These (face transplant) patients are not in organ failure but are having to take anti-rejection medication and have lifelong repression," explains Dr. Maria Siemionow, from the University of Illinois, who performed a near-total face transplant in 2008 on American Connie Culp, who was shot in the face by her husband. But Siemionow is working to solve this problem. "We need new therapies which will be less harmful," she says. The Polish surgeon is developing chimeric cells, which bring together the cells from a donor and the recipient during transplantation. "We are fusing together cells from the bone marrow of donors and recipients so these cells will be recognized by the recipient's immune systems as their own," she explains. Not an easy task. By combining the two cells and delivering them into patients receiving a transplant, their immune system will learn to recognize the donor's cells, which are present throughout their new face, making their immune cells less likely to attack the face. "If the (immune system) can recognize more cells as 'self' the patient will need less anti-rejection drugs," says Siemionow, whose experimental therapy is hoped to enter clinical trials in a few years and when it does, may make face transplants more acceptable to critics. "Immunosupression is the main ethical concern and new therapies are crucial for the future of this field," she says. Luskin feels the benefits of a new face counter ethical doubts. "There is no ethical issue," he concludes. "I saw a patient walking down a crowded hospital hall a few years after surgery and no-one noticed them. He looked like a normal guy. To me, that's the point of these surgeries."

A: The first face transplant was performed in France in 2005 .
U.S. has approved policies that will make it easier to find donors .
Scientists are developing techniques that will reduce risk of transplant rejection .
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Q: Mogadishu (CNN) -- A female soldier roughly passes her hands over the waistband of my jeans as a finishing touch to the most intimate pat down I've ever received. But we're not done yet, a metal detector is then passed in unusually close contact with my skin. Up down, over and around. And that's just to get through the first gate. At the second entrance, a Somali close protection officer bars the way and Special Forces officers crowd around as our camera is switched off and on to prove it is indeed a camera. Even though we had traveled in with African Union soldiers tasked with escorting the President, suspicions still had to be assuaged. And if all this seems extreme, it isn't. On his second day in office, Hassan Sheikh Mohamud was targeted by the al-Qaeda linked militant group al-Shabaab, and even on this day, as we drive through town, we pass the still-smoking wreckage of the Somali Minister of Interior's convoy. A car filled with explosives drove into his flag car, detonating on impact. Fortunately for the Minister he wasn't in the car at the time. Eight civilians, though, were killed on the street. Read more: Suicide bomber targets Qatari delegation in Somalia, 8 dead . And yet, Mahmud insisted on keeping this appointment at an opening of a hotel in Deynile, on the outskirts of Mogadishu where Al-Shabaab still have a presence. If he's worried he didn't look it, smiling from behind his wrap-around shades as women dressed in the Somali flag sing traditional songs of welcome. Eventually he is brought to us around the back of the courtyard for our scheduled interview -- but not before the perimeter is repeatedly swept. Read more: Dozens dead in Somali courthouse attack . In an open-air space like this, though, there is only so much his men can do. Especially when his enemies are willing to die for the cause. The president tells me he is aware that these trips he makes cause consternation among his advisers, but he has absolutely no intention of stopping. He says they send the most powerful message of all -- that al-Shabaab no longer call the shots in Mogadishu.

A: Somali president attended a hotel opening in Mogadishu's militant occupied outskirts .
He was targeted by al-Qaeda-linked group al-Shabaab on his second day in office .
The president tells CNN that al-Shabaab "no longer call the shots in Mogadishu"
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Q: The ancient world was full of strange animals that have gone extinct, such as a group of marine species with claw-like structures emerging from their heads. A new study suggests that these creatures were related to spiders and scorpions. Researchers discovered the fossilized remains of a species in southwest China that provides new insights into the evolution of animals in the modern era, scientists said. They report their findings in the journal Nature. Scientists believe that the creature -- 1 inch long, and with two pairs of eyes -- lived 520 million years ago and that it crawled or swam in the ocean. They were able to reconstruct the creature's nervous system to gain insights about its evolutionary relationships to animals familiar to us. "For the first time, we are able to use fossilised neural anatomy to sort out how fossil animals are related to animals today," study co-author Xiaoya Ma of the Department of Earth Sciences at the Natural History Museum in London wrote in an e-mail. This creature belongs to the Alalcomenaeus genus, and its place in the animal kingdom lies in "a group of weird extinct animals" called the "megacheiran" or "great appendage" arthropods, Ma said. The species of the Alalcomenaeus group had elongated, segmented bodies with about 12 pairs of appendages they used for swimming or crawling. They also had a pair of long, scissor-like head claws, most likely for grabbing or sensing. Scientists say the reconstruction of the new creature's nervous system is the most complete for an arthropod living at that time, in the Cambrian geological period. Discovery makes a splash: The rarest whale . The brain and central nervous system of the creature are organized in a way that is similar to those of the chelicerata, the group that includes horseshoe crabs and scorpions. This suggests a close evolutionary relationship between the ancient Alalcomenaeus and the living chelicerata. A distinct group of arthropods called the mandibulates includes lobsters, insects, centipedes and millipedes. Last year at the same site in China -- called the Chengjiang formation near Kunming -- Ma and colleagues discovered a 520 million-year-old crustacean-type nervous system in an animal called Fuxianhuia. Taken together, these discoveries suggest that by 520 million years ago, the two major groups of arthropods had diverged. Their common ancestor must have been older, researchers said. "This means the ancestors of spiders and their kin lived side by side with the ancestors of crustaceans," co-author Nick Strausfeld, neuroscience professor at the University of Arizona, said in a statement. Strausfeld's team used sophisticated imaging techniques to look at the inch-long Alalcomenaeus fossil. One kind of scan revealed that iron had built up in the nervous system as the creature fossilized. They also used a technique called computed tomography that reconstructs 3-D features. By combining these images and discarding any data that weren't in both, they were able to create a sort of negative X-ray photograph, "and out popped this beautiful nervous system in startling detail,"  Strausfeld said. It confirmed what scientists had believed from the creature's outward appearance: The extinct genus Alalcomenaeus was related to chelicerates (spiders, scorpions and others). They also saw that the brain in the fossil was like the brains found in modern scorpions and spiders. If researchers find a fossil with features shared by this creature and the crustacean-like fossil Ma and colleagues found last year, that could be a common ancestor of both. There's plenty more weirdness from ancient history to uncover. 18-foot oarfish discovered .

A:
The fossil is 520 million years old and was found in China .
Using multiple images of the animal, the researchers discovered the nervous system .
They also saw the brain was like those of today's spiders, scorpions .
The work shows the early evolutionary differences, researcher says .
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