instruction:
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.
question:
(CNN) -- Authorities found four human bodies abandoned in the Arizona desert Thursday. Initial indications point to exposure as the probable cause of death, said Victor Brabble, a spokesman for U.S. Customs and Border Protection. "It is probable that they are immigrants attempting to cross into the U.S.," he said. "However, we don't have enough to draw a conclusion on it now." The bodies were found near Gila Bend, Arizona, about 70 miles north of the border. They have not been identified, the Maricopa County Sheriff's Office said. Immigrants often try to cross the Sonoran Desert's harsh terrain, and there are many heat-related deaths, Brabble said Thursday. Immigrant rights advocates have warned that even as border crossings decrease, deaths are on the rise as increased border security forces people to choose more dangerous crossing routes. Border patrol officials have argued that more security is necessary to stop smugglers. According to a recent study by the Binational Migration Institute at the University of Arizona, more than 2,230 migrants have died in the state's desert area along the border in the past 22 years. In the border region of Pima County, Arizona, deaths of unidentified migrants in the desert have become so common the Medical Examiner's Office has helped create a website to track the deaths and assist family members searching for their loved ones' remains. On Thursday, a bipartisan group of senators announced a proposal to add 20,000 more border agents, complete 700 miles of fence along the boundary with Mexico, and deploy $3.2 billion in technology upgrades similar to equipment used by U.S. forces in Iraq and Afghanistan. The proposed amendment, negotiated by a group of senators from both parties known as the "Gang of Eight," is intended to ensure Senate passage of a major immigration reform bill with enough Republican support to persuade the GOP-controlled House to also take up the measure. Journalist Valeria Fernandez and CNN's Tom Cohen, Dana Bash and Ted Barrett contributed to this report.
answer:
A border patrol spokesman says it's probable they are immigrants .
The bodies have not been identified, the Maricopa County Sheriff's Office says .
Activists say border deaths are on the rise as security forces more dangerous crossings .
Border patrol officials have argued that more security is necessary to stop smugglers .


question:
(CNN) -- Even a presidential campaign's airplane troubles can get partisan in an election year. Aviation incidents involving President Barack Obama and Ann Romney, wife of Republican presidential candidate Mitt Romney, have inspired hundreds of supporters commenting at CNN.com to connect those events to the candidates' political positions. When the Air Force One pilot aborted his first landing in Toledo, Ohio, due to weather on Wednesday, commenters were quick to jump on Obama. "See, Barack Obama can't even land a plane correctly," wrote a commenter whose handle is TheOtherBob. "He was probably checking the polls - thinks he has Ohio in the bag - no need to land," wrote another commenter. "He was distracted, since he was busy adjusting gas prices over his smart phone," wrote another commenter. Ann Romney's smoke-filled plane . Ann Romney couldn't catch a break, either. Her airplane cabin filling up with smoke due to an electrical problem was no laughing matter, but commenters quickly took aim at her husband and his response. Mitt Romney talked about not being able to open the airplane's windows in flight. (New York Times writer Ashley Parker, who wrote the presidential pool report mentioning the comments, declined to comment on his remarks, referring CNN to a New York magazine piece where she made it clear that Romney was joking.) "Maybe if Romney hadn't started the outsourcing trend, that plane would have been built and maintained better by hardworking 47%ers," wrote one commenter. "Firefighters came to the rescue, paramedics were there on time and the police took special care of your security. We are the 47% your husband scorns," wrote commenter Kweso. Reminders of the actual flying conditions . Enough with the political bickering, suggested some commenters. "The hate thrown out at the Romneys (and at President Obama) is just plain absurd," wrote commenter jolivier23. On Romney's flight: "CAN YOU PEOPLE STOP WITH THIS CHARADE. Can you just be happy that the everyone was safe and no one was injured," wrote one commenter. "What is wrong with you people? Why are you making this a political issue? I am just glad nobody was hurt. " On Obama's flight: "This incident with the President was just routine turbulence which is something that you really can't do anything about in the first place," wrote one commenter. "If the one of the best pilots (and co-pilots) in the U.S. Air Force aborts a landing you know the conditions were hairy," wrote daehttub2000. Perhaps remembering a line from that esteemed television show "Hill Street Blues," he wrote, "Let's be careful out there." Many of us have stories of grabbing a complete stranger or picking airline pretzels out of our hair after a particularly bad bout of turbulence. Do you have any stories to share? Tell us in the comments below.
answer:
Obama critics connected an aborted landing in Ohio to the president's political positions .
News of Ann Romney's smoke-filled plane brought comments about her husband .
Hateful comments toward either presidential candidate "are just absurd," says one commenter .


question:
Washington (CNN) -- Colleagues of Sen. Robert Byrd of West Virginia mourned his death as family and friends planned his funeral. Byrd, the longest-serving member of the U.S. Congress, died Monday at the age of 92. Under West Virginia law, the state's popular two-term Democratic governor, Joe Manchin, has the power to appoint Byrd's successor. Manchin is expected to name a fellow member of his party to succeed Byrd, who was also a Democrat, thereby keeping a total of 59 Democrats in the Senate. There are questions, however, regarding exactly how long Byrd's appointed successor can serve before another election is held. West Virginia law says that if a Senate vacancy is created within two and a half years of the end of a term, the appointed successor will automatically serve out the remainder of the term. If not, a special election is required. Byrd's current term is scheduled to end on January 3, 2013. The two and a half year mark will be reached on Saturday, July 3. West Virginia law fails, however, to state exactly when a vacancy occurs. Whether the vacancy is considered to have been created at the moment of Byrd's death, or when the Senate informs state officials of the vacancy, or when Manchin declares the seat vacant will be crucial. West Virginia -- a traditional Democratic stronghold -- has been increasingly competitive for the Republicans. John McCain easily defeated Barack Obama in West Virginia in the 2008 presidential election. Neither Manchin nor the Democratic-led Senate have made any official declarations yet. As question swirl around the timing of the next election for Byrd's seat, numerous political leaders have been issuing statements in remembrance of the nine-term senator: . -- President Barack Obama . "The people of West Virginia have lost a true champion, the United States Senate has lost a venerable institution, and America has lost a voice of principle and reason with the passing of Robert C. Byrd. Senator Byrd's story was uniquely American. He was born into wrenching poverty, but educated himself to become an authoritative scholar, respected leader, and unparalleled champion of our Constitution. He scaled the summit of power, but his mind never strayed from the people of his beloved West Virginia. He had the courage to stand firm in his principles, but also the courage to change over time." -- Gov. Joe Manchin, D-West Virginia . "Sen. Byrd was a fearless fighter for the constitution, his beloved state and its great people. He made a significant mark as a member of Congress in both our state's and nation's history. His accomplishments and contributions will define history for eternity." -- Sen. Jay Rockefeller, D-West Virginia . "It has been my greatest privilege to serve with Robert C. Byrd in the United States Senate. I looked up to him, I fought next to him, and I am deeply saddened that he is gone. He leaves a void that simply can never be filled. But I am lifted by the knowledge of his deep and abiding faith in God, I have joy in the thought of him reunited with his dear (late wife) Erma, and I am proud knowing that his moving life story and legacy of service and love for West Virginia will live on. Senator Byrd came from humble beginnings in the southern coalfields, was raised by hard-working West Virginians, and triumphantly rose to the heights of power in America. But he never forgot where he came from nor who he represented, and he never abused that power for his own gain." -- Senate Majority Leader Harry Reid, D-Nevada . "By virtue of his endurance, Robert Byrd knew and worked with many of the greats of the United States Senate. Because of his enduring virtue, he will be remembered as one of them. Senator Byrd dedicated every single day of his Senate service to strengthening the institution, state and republic that he loved so dearly. There will never be another like him." --Senate Minority Leader Mitch McConnell, R-Kentucky . "Sen. Byrd combined a devotion to the U.S. Constitution with a deep learning of history to defend the interests of his state and the traditions of the Senate. We will remember him for his fighter's spirit, his abiding faith, and for the many times he recalled the Senate to its purposes. ... We are glad to know that Senator Byrd and his beloved Erma are reunited. We extend our deepest sympathies to the entire Byrd family." --Sen. Patrick Leahy, D-Vermont . "No senator came to care more about the Constitution or to be a more effective defender of our constitutional government than the senior senator from West Virginia. He was a senator's senator. ... I know him as a mentor and a friend. I was honored to stand with him and fight against assaults on the Constitution and against an unnecessary and costly war in Iraq. He was a self-educated man who learned much throughout his life and had much to teach us all. He was a symbol of West Virginia, he was an outstanding senator, and he was extraordinary American." --Sen. Jeff Sessions, R-Alabama . "It is a sad day for all of us. There was no one who loved the institution of the Senate more, and no one who was a better student of it." CNN's Ted Barrett, Alan Silverleib, and Paul Steinhauser contributed to this report.
answer:

NEW: President Obama: Senate has "lost a venerable institution"
Questions raised about if/when a special election is required .
Harry Reid, Senate Democratic leader: "There will never be another like him"
Void "can never be filled," says Sen. Jay Rockefeller, D-West Virginia .