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.

[EX 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."
[EX 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 .

[EX Q]: (CNN) -- Police in Norwalk, Ohio, are searching for a 17-year-old girl who has been missing since June 7 after trading text messages with her boyfriend that indicated the two were planning to run away together, police Sgt. Jim Fulton said Monday. Fulton said police believe Abbi Obermiller left her grandparents' home on her own accord late on the night of June 6, but said detectives are "concerned" that the situation may have changed and that there is a "possibility she is in danger." He declined to elaborate on what information authorities have received that led them to believe her situation possibly changed. Investigators in the case have uncovered a series of text messages between Obermiller and her boyfriend, identified by police and by Obermiller's parents as 20-year-old Robert Young of Norwalk, that appear to be coordinating when she would be picked up from her grandparents' home in the early morning hours of June 7, Fulton said. According to Fulton, Obermiller repeatedly sent messages to Young asking, "How much longer?" At 12:45 a.m. June 7, Young responded and told her to "leave now," Fulton said. The last text message from Obermiller appeared to direct Young to her location, Fulton said. CNN could not immediately reach Young for comment Monday night. Young has denied knowledge of Obermiller's whereabouts, according to police. Young has told police the messages were a week old and were sent over Memorial Day weekend while the couple coordinated a swimming date, Fulton said. However, other evidence indicates the couple were  making plans to run away  after Obermiller's parents expressed  disapproval of their relationship,  Fulton said. Young was charged June 14 with obstruction of justice in the case for  his failure to cooperate in the investigation, authorities said. A text message to one of Obermiller's friends sent before her disappearance indicates Obermiller knew she would be going away. In it, she tells her "bestest friend" that she won't be able to talk for a while so "don't forget me," according to Fulton. And a note found in her grandparents' home reads: "I just couldn't take any more of this drama, it's not good for me. Love you all. Hope to see you soon. Love, Abbi," according to Fulton. Fulton also said one of Obermiller's friends told police she saw Abbi wearing a wedding ring. "We do believe that Bobby does know where she's at, he just doesn't want to tell us," Obermiller's mother, Rose Obermiller, told HLN's "Prime News" on Monday night. Rose Obermiller told "Prime News" that she initially approved of her daughter's relationship with Young, but that Young's behavior grew increasingly alarming. "In the beginning he was a nice Christian boy," Obermiller said. "He went to church, he was on the baseball team, he was on the basketball team (and) he really cared for Abbi. "But as it went on, he was telling her, 'No I don't want you to be class treasurer; no, I don't want you to go to New York with your choir; no, I don't want you to see these friends and relatives," Obermiller said. "He was telling her what not to do." Fulton said Young has declined to take a polygraph test in the case.
[EX A]: Abbi Obermiller last seen June 6 .
Text messages indicate she was planning to run away with her boyfriend, police say .
Boyfriend denies knowledge of her whereabouts .
He has been charged with obstruction of justice for failure to cooperate in investigation .

[EX Q]: Kiev, Ukraine (CNN) -- A perilous face-off intensified Saturday when Russia state news complained that Ukraine had mobilized 15,000 troops in the suburbs of Slavyansk in eastern Ukraine "in order to wipe out the city and its residents." Quoting a Russian Defense Ministry source, RIA Novosti said satellite photos showed the force forming around the city that has become a friction point between the Ukraine military and pro-Russian militants. The Defense Ministry source said the number of Ukraine troops put the pro-Russian militants at a disadvantage because the latter are "armed only with small amount of pistols and shotguns." Many eastern Ukraine residents have Russian roots and sympathize with Moscow. The source said the photos showed about 160 tanks, 230 infantry combat vehicles and armored personnel carriers, mine throwers and multiple-launch rocket systems. Russian President Vladimir Putin has repeatedly criticized Kiev's use of force against Ukrainian civilians. Developments in Ukraine have come at a rapid pace in recent days: . -- Russia, which already had 40,000 troops on its side of the border, started new military drills a few days ago after Ukrainian forces said they killed five pro-Russian militants. Ukraine launched the second stage of an "anti-terrorist operation" against militants in Slavyansk. -- On Friday, a team of European and Ukrainian military observers were seized Friday by pro-Russian separatists in Slavyansk. -- Russian military aircraft "crossed and violated" Ukrainian airspace seven times overnight, Ukrainian Prime Minister Arseniy Yatsenyuk told reporters in Rome on Saturday. The Russian Defense Ministry denied the accusation, according to the state news agency Itar-Tass. -- Yatsenyuk met with Pope Francis while in Rome on Saturday. The meeting has been seen as a sign of support from the Vatican for his government. -- G7 leaders said they would impose new sanctions on Russia over its role in the crisis. The Ukrainian Prime Minister urged Russia to pull back its security forces and not to support pro-Russian militants in eastern and southern Ukraine. "We urge Russia to leave us alone," he said in televised remarks. Ukraine's government has promised constitutional reforms and protections for Russian speakers in a bid to ease the tensions in its eastern regions. Inspectors seized in Slavyansk . On Saturday, the fate of the military inspectors preoccupied world leaders. The inspectors from the Organization for Security and Co-operation in Europe were detained Friday as they entered Slavyansk, along with five Ukrainian military representatives and the driver of their bus, Ukraine's Interior Ministry said. Ukraine's Security Service, the SBU, said the group is being kept under "inhumane conditions" in the basement of a building held by the militants. The self-declared mayor of Slavyansk, Vyacheslav Ponomarev, told reporters that one of the "prisoners" has diabetes, but he has the medicine he needs and will be given his own quarters overnight. Separatist leader Denis Pushilin, self-declared chairman of the so-called "Donetsk People's Republic," told CNN he doesn't believe they are from the OSCE, but that some are NATO spies. The German Foreign Office said it had set up an emergency task force to find out what has happened to the team members, four of whom are German. The others are from Denmark, Poland, Bulgaria and the Czech Republic, Russian state media said. The OSCE mission in Ukraine is tasked with helping to implement an international agreement signed nine days ago in Switzerland, which called for illegal militia groups to disarm and leave occupied buildings, among other provisions. In a phone call with U.S. Secretary of State John Kerry, Russian Foreign Minister Sergey Lavrov asked the United States to use its influence to secure the release of pro-Russian leaders being held in Ukraine. Kerry urged Russia to support efforts of the OSCE and the government of Ukraine to liberate the inspectors and their Ukrainian guides, according to a senior State Department official. Targeted sanctions . Against the backdrop of increasing volatility in Ukraine, leaders of the G7 industrialized nations on Friday announced they would "move swiftly to impose additional sanctions on Russia" over its actions in Ukraine. The statement from the group -- which includes Canada, France, Germany, Italy, Japan, the United Kingdom and the United States -- came hours after U.S. President Barack Obama threatened Russia with new sanctions. CNN's Gul Tuysuz reported from Kiev and Laura Smith-Spark wrote and reported from London. CNN's Andrew Carey and Nick Paton Walsh in Slavyansk and journalist Victoria Butenko in Kiev contributed to this report. CNN's Alex Felton, Bharati Naik, Ben Brumfield and Boriana Milanova also contributed.
[EX A]:
Russian state news says 15,000 Ukrainian troops in eastern Ukraine .
Self-declared mayor of Slavyansk says diabetic hostage has the medicine he needs .
Ukraine's Security Service says OSCE team is being held in "inhumane conditions"
U.S. official says planned U.S. sanctions "can have a significant impact" on Russia .