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) -- The bad news kept piling on the National Football League on Wednesday with the arrest of an Arizona Cardinals player. Police in Phoenix arrested Jonathan Dwyer after practice on multiple allegations of felony assault. It was the latest public relations blow for the most popular sports league in America, which has been the subject of public scorn and scrutiny after half a dozen players recently got into trouble or were disciplined. Here is a quick look at those players and their travails. Adrian Peterson . One of the top players in the NFL, he left the Minnesota Vikings on Wednesday to deal with child abuse accusations in Texas. Peterson had been deactivated by the Vikings and missed Sunday's game, then reactivated Monday. But the team said it needed to correct its mistake and deactivated him again. Peterson then took a leave of absence and NFL Commissioner Roger Goodell placed him on the exempt list, which gives the team the opportunity to continue to pay him while he deals with his legal issues. At no point has Peterson been suspended. Greg Hardy . The Carolina Panthers' defensive star also took a leave of absence because of legal troubles. As with Peterson, Hardy will be paid while he is away from the team. Hardy was convicted by a judge in July on misdemeanor assault charges. He asked for a new trial in front of a jury, which is scheduled for mid-November. Hardy played one game then was deactivated as the outrage against the NFL grew over how it was dealing with domestic violence issues. He has proclaimed his innocence of the charges, which were filed after police said he assaulted his then-girlfriend and threatened to kill her. He was sentenced to 18 months probation and a 60-day suspended . Jonathan Dwyer . The most recent player to be arrested, the running back is alleged to have assaulted a 27-year-old woman and an 18-month-old child. A Phoenix police spokesman, Sgt. Trent Crump, said it would be reckless to identify the victims. Dwyer, 25, was spending Wednesday night in the Maricopa County jail and the Arizona Cardinals deactivated him. He won't be able to take part in any team activities, if he is released from jail. Crump said two incidents were reported by neighbors in July. The woman didn't allege any violence until last week when she called from another state, where she had moved with the child. The most serious of six charges were three counts of assault, one of which caused a fracture. Dwyer was being held in the Maricopa County Jail and couldn't comment. CNN's attempt to reach his agent was unsuccessful. Ray Rice . The running back without a team is appealing his indefinite suspension by the league. While Rice has called punching his future wife in the head and knocking her out "inexcusable," he is seeking to have the opportunity to play in the NFL again. The players' union has complained that Rice didn't receive due process from Goodell, who suspended him in June to a two-game ban, then increased the penalty to an indefinite suspension. That came earlier this month after TMZ Sports posted a video that showed the punch. Rice was three days away from completing the original suspension when the indefinite ban was handed down and when the Baltimore Ravens terminated his contract. Ray McDonald . Three days after Goodell created a new NFL policy against domestic violence on August 28, San Francisco 49ers defensive tackle Ray McDonald was arrested on an accusation of felony domestic violence. The new policy imposes a minimum six-game unpaid ban for first-time offenders and up to a lifetime ban for second-time offenders. No charges have been filed in the incident involving McDonald. Neither the team nor the league has levied any discipline in the case and the starter at left defensive tackle played the first two games of the season. Quincy Enunwa . The Jets practice squad player's arrest went practically overlooked outside of the New York area. According to USA Today's "NFL Players Arrests" tracker, he was arrested September 4. Enunwa was charged with simple assault after a woman told police he pulled her off a bed at a hotel, causing her a head injury, ESPNNewYork.com reported. He pleaded not guilty, ESPN said, adding that the player was still practicing with the team.
[A]: The National Football League has seen several of its players appear in mug shots .
Two of those players took leave on Wednesday .
The day also brought another arrest in a new domestic violence investigation .


[Q]: (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.
[A]: 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 .


[Q]: (CNN) -- Chelsea have completed the signing of England international defender Gary Cahill from Premier League rivals Bolton Wanderers for a fee of $10.7m. The 26-year-old finalized his protracted move on Monday after agreeing personal terms and passing a medical, making it the biggest English transfer so far during the January window. Cahill has signed a five-and-a-half year contract with the London club, despite doubts beginning to surface about the deal due to the length of time negotiations over his financial terms took. Who are football's top January transfer targets? He told the official Chelsea website: "Chelsea are a massive club. They look to win trophies season in season out and it is a big opportunity for me to be a part of that. "Opportunities like this, you just can't turn down," added Cahill, who has won seven England caps and will be battling with Brazilian David Luiz to partner England captain John Terry at the heart of the Chelsea defense. Speaking on Saturday about Cahill's impending arrival, Chelsea manager Andre Villas Boas told reporters: "He has good technical abilities which is important in the way we want to play and to implement our philosophy. "Competition will be tight for him but we brought him in to become better as a team." Cahill joined Bolton from Aston Villa in January 2008 and developed into one of England's top defenders during his four years at the Reebok Stadium. However, he had already indicated he was not prepared to sign a new contract, meaning Wanderers were forced to sell him or lose him for free at the end of the season. Meanwhile, the Carlos Tevez transfer saga has taken a new twist after Inter Milan president Massimo Moratti confirmed the Italian club had made a $31.7 million bid for Manchester City's Argentine striker. Speaking to reporters after Inter's 1-0 victory over city rivals AC Milan, Moratti said: "Our offer is 25 million euros -- now it depends on them whether they accept it or not." Inter have emerged as favorites to sign Tevez, after Milan pulled out of the race last week when their plan to sell Alexandre Pato to Paris St Germain fell through following the Brazilian's decision to stay at the San Siro. Ironically big-spending PSG now seem the only realistic challengers for Tevez, who has fallen out of favor at City after refusing to come off the substitutes' bench during the 3-1 Champions League defeat at Bayern Munich earlier in the season. Elsewhere in the Premier League, Blackburn central defender Chris Samba has handed in a written transfer request, despite Rovers manager Steve Kean saying the player was not for sale. The Congolese international has already been the subject of a rejected bid from QPR, while title-chasing Tottenham and French big spenders PSG have also been linked with the player. Samba issued a statement saying: "In my five years at Blackburn I have always given 100% in every game I have played. I have had several opportunities to leave but I have always stayed. "I have decided now is the right time for me to pursue a new challenge and I have asked the club to respect my decision and allow me to leave." In other transfer news, Barcelona have announced that French defender Eric Abidal has signed a new deal with the club. The 32-year-old, who had been linked with a move away from the Nou Camp, is now contracted to the European champions until June 2013, with an option to extend the deal until 2015. Abidal has made 177 appearances in four years with Barca, winning the Champions League twice and the Spanish La Liga three times.
[A]:
Chelsea have completed the signing of Bolton central defender Gary Cahill .
The 26-year-old England international joins Chelsea for a fee of $10.7 million .
Cahill's transfer is the biggest in England so far during the transfer window .
Eric Abidal signs a new contract with Barcelona to end speculation about his future .