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.
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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: As they make a final push to approve presidential nominations before Republicans take control of the Senate, Democrats said Tuesday the confirmation of a record number of federal judges was evidence they were right to make controversial changes to filibuster rules, despite objections from Republicans. "Yes," Senate Majority Leader Harry Reid responded loudly when asked if still believes he was right to employ the so-called "nuclear option" a year ago in order to clear a backlog of nominees. The No. 2 Senate Democrat explained that at the time there was a "breakdown in the relationship between the executive and legislative branch." "If you just look at where we were, with all of the nominations stacked on the calendar, most of which had been reported from committees with overwhelming bipartisan votes," Sen. Dick Durbin said.  "Republicans were trying to keep as many nominations from final approval as possible. So we had no choice." During the first year of the congressional session, before the nuclear option, the Senate confirmed a total of 36 federal district and circuit court judges appointed by the President.  After the rules changes, which took place Nov. 21, 2013, the number of judges confirmed more than doubled to 84. The rules change lowered the number of votes needed to overcome a filibuster from 60 to 51, making it much easier for Democrats, who currently have a 54 to 46 majority, to approve judges to those lifetime positions. Before the Senate adjourns, probably in the next day or two, Democrats hope to confirm an additional 12 district court positions. Democrats this week also cleared a new surgeon general, a top immigration official, and were ready to approve Tuesday the No. 2 at the State Department. Each of those people faced serious GOP opposition and might not have been cleared if not for the rules change. "The train is running over everyone. That's the Reid train. Last trip around the track," complained Sen. John McCain, R-Arizona about the last minute wave of judicial and executive branch nominations Senate Democratic Leader Reid is jamming through. "It's a result of the nuclear option which deprived us of our ability to advise and consent and it's shameful. McCain and other Republicans also blamed Sen. Ted Cruz, R-Texas, and a small group of other conservatives who forced a weekend session that Reid used to clear procedural hurdles on a number of nominees. "It was also caused in part by what happened last weekend when several nominees who are controversial are now going to receive Senate votes and are probably going to be confirmed who otherwise probably would not have been," said Sen. Susan Collins, R-Maine.

Answer: Democrats say they have no regrets over changing the Senate rules to approve more judges .
Republicans, who will take control of the Senate in January, are upset with the maneuver .


Question: (CNN) -- On Tuesday, a federal advisory panel, the National Science Advisory Board for Biosecurity, recommended that university scientists who have submitted articles on how to modify a flu virus to two very prestigious journals delete critical information from them before publishing. The papers describe how to alter bird-flu virus to be more infectious and potentially nastier. Yes, this is same bird flu virus that, as it moved into pigs, was freaking us all out last year. If you had the detailed map of the viral changes needed, then either a terrorist or an amateur "garage" biologist operating without the right safeguards would have a very effective critter for killing you and me. If there is one thing that scientists hate, it is any policy that restricts research in any way. Scientists are taught that they need to be bold in asking questions and not let anything deter them from following their thinking wherever it leads, no matter how unpopular that might be. They are also taught the absolute necessity of making their claims public in reputable journals so that other scientists can subject them to the critical skepticism from which the truth ultimately emerges. Once in a long while, however, the price of the truth is simply too high to let scientists disclose their findings publicly. That is so when it comes to publishing detailed information about dangerous viruses and microbes. We don't have to hide the genetic map for a killer avian flu virus from all eyes. Access to some who have clearance to see it should be possible. If that is done, then the truth will still be known about whether those making claims of being able to engineer the virus can actually do so. To go further with potentially catastrophic data is to court trouble. There are those who will say that the only way to fight terror is to adhere to those values that have proven crucial to the advance of science over the decades. The more we know, the worse for the terrorists. Unfortunately, that is no longer the world we live in. The ethics of inquiry need to adapt. Handing the complete formula for making a nasty pandemic bug to any nut with access to the Internet or a subscription to a scientific journal makes no sense in a world that has seen the use of anthrax and sarin as weapons of terror. Freedom is key to good science. Freedom from terror is also key to good science. When they conflict, the latter is more important freedom than the former. Journals and those who write for them ought to do all they can to try and ensure that most important freedom. The opinions expressed in this commentary are solely those of Arthur Caplan.

Answer:
For first time, a federal panel has advised that science journals censor flu study facts .
The papers describe how to alter bird-flu virus to be more potent, says Arthur Caplan .
Scientists generally hate policies that restrict research in any way, Caplan says .
Caplan: Sometimes risk is too high to let scientists openly disclose their findings .