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.

Input: Consider Input: (CNN) -- There are fears of Russians and it is October, but it's not a Tom Clancy novel. It is a case of international naval intrigue off the Swedish coast that brings back memories of the Cold War. The Swedish military on Monday intensified a search in the ocean off Stockholm for an underwater mystery vessel, but stopped short of calling it a submarine. Civilian vessels were ordered to stay at least six miles (about 10 kilometers) away from the Swedish warship conducting the search, the English-language website The Local reported. The search began Thursday after Swedish intelligence picked up an emergency radio call in Russian, reported The Local, citing the Swedish newspaper Svenska Dagbladet. The radio transmissions were being sent to the Russian enclave of Kaliningrad, 330 miles (530 kilometers) south of Stockholm on the Baltic's southern shore, according to The Local report. There were also reports that a foreign vessel was spotted in the waters near Stockholm. Russia on Sunday denied it has any vessel in Swedish waters. Moscow suggested the vessel may belong to the Netherlands and have been involved in naval exercises off Sweden, according to a report from Russia's Itar-TASS news agency. The Dutch were quick to respond, saying a sub involved in the exercises was anchored in Tallinn harbor of NATO-ally Estonia for the weekend, according to a report from Agence France-Presse. 'We have good stamina' On Monday, the Swedish military vowed to continue searching at least for the next few days, according to The Local. "We have good stamina," The Local quoted defense spokesman Dag Enander. "We're using the sensors we have and are searching both from land and water," Enander was quoted as saying. To confuse matters even more, the Swedish military said Monday that it purposely provided incorrect information on Sunday about where the mystery vessel was sighted to keep the search area secure. U.S. officials told CNN there are no U.S. submarines or surface ships in the immediate area. U.S. intelligence doesn't know of any Russian assets in that area, the officials said. All the activity begs the question, why would a Russian sub need to snoop around in Swedish waters anyway? Johan Wiktorin of the Swedish Royal Academy of War Sciences gave three possibilities to The Local: . "They could be mapping the waters in order to be able to navigate them in the event of hostilities," Wiktorin is quoted as saying. "They could also be installing equipment, like sensors, that could track or get an observation of our units in that area," he goes on. "Or they could also possibly reconnoiter our (defense) systems." Russian military around the world . Whether there is a Russian sub in Swedish waters or not, there is no question that Russian forces have been active in the Baltic and around the globe this year. In fact, the Swedish military said Sunday that it has monitored suspicious activity for several years, according to another report in The Local. In July, a U.S. Air Force reconnaissance plane fled into Swedish airspace after the Russians took the unusual action of beginning to track it with land-based radar. The Russians then sent at least one fighter jet into the sky to intercept the U.S. aircraft. And on April 23, a Russian Su-27 Flanker fighter jet buzzed within 100 feet of the nose of a U.S. Air Force RC-135U reconnaissance plane over the Sea of Okhotsk between Russia and Japan, a Defense Department official said. Also on April 23, Dutch fighter jets scrambled to intercept a pair of Russian Tu-95 Bear bombers that entered a half-mile into Netherlands airspace. On June 4, according to U.S. defense officials, four long-range Russian Tu-95 bombers, accompanied by an aerial refueling tanker, flew into the U.S. Air Defense Identification Zone, an area extending 200 miles (320 kilometers) from the North American coast, off Alaska, where they were intercepted by U.S. F-22 fighter jets. Two of the Russian bombers peeled off and headed west, while the other two flew south and were identified by U.S. F-15 fighters within 50 miles of the California coast. And last month, two Alaskan-based U.S. Air Force F-22 fighter jets intercepted two Russian IL-78 refueling tankers, two Russian MiG-31 fighter jets and two Russian Bear long-range bombers, according to Capt. Jeff Davis of the North American Aerospace Defense Command. More than six hours later, two Canadian CF-18 fighter jets intercepted two Russian bombers in the Beaufort Sea, Davis said. Those Russian planes came within about 40 nautical miles of the Canadian coastline, he said. Earlier this year, a top U.S. Air Force general said Russia was stepping up its military activities in the Asia-Pacific region as tensions increased over Ukraine and Russia's move into Crimea.

Output: Emergency radio call picked up by Swedish military, report says .
Radio transmissions sent to Russian enclave on Baltic Sea, report says .
Russia denies any vessel in Swedish waters .
Russian military has been active around world this year .


Input: Consider Input: (CNN) -- The remains of Neil Armstrong were committed to the Atlantic Ocean on Friday during a ceremony aboard a U.S. Navy cruiser. Armstrong's cremated remains were sent into the Atlantic Ocean during a burial-at-sea service aboard the USS Philippine Sea, NASA said. His wife, Carol Armstrong, participated in the ceremony. Neil Armstrong, who died August 25 at age 82, was an aviator in the Navy before becoming the first person to walk on the moon, having flown 78 combat missions during the Korean War. He earned his renown commanding the Apollo 11 space mission and landing on the moon on July 20, 1969, when he was 38. Friday's ceremony came a day after hundreds of people attended a memorial service for him at Washington National Cathedral. Neil Armstrong, a hero who shunned fame . John Glenn: Armstrong was a good friend .

Output: Neil Armstrong, first man to walk on moon, died August 25 at age 82 .
Armstrong's wife participates in ceremony aboard USS Philippine Sea .
Hundreds attended Armstrong's memorial at Washington National Cathedral on Thursday .


Input: Consider Input: (CNN) -- Speaking Saturday at the Summit of the Americas, President Barack Obama said it is reasonable to debate alternatives in the war on drugs, but insisted legalizing drugs wasn't a valid option in the United States. Obama voiced his view in his first public remarks at the hemispheric event during a meeting of business leaders, where he was part of a panel alongside Brazilian President Dilma Rousseff and Colombian President Juan Manuel Santos. The possibility of drug legalization has gained traction in Central America, which is being squeezed between suppliers to the south and consumers to the north. Yet the idea goes against decades of the prohibitionist policy backed by the United States, which is largely followed and enforced in Latin America and the Caribbean. Santos noted Saturday that people in his native Colombia, too, have called for different ways to approach illicit drugs. "Sometimes we pedal and pedal and pedal, and we feel like we are on a stationary bike," he said of the war on drugs. "I think the time has come to simply analyze if what we are doing is the best we could be doing, or if we can find an alternative that would be more effective and less costly to society. This is a topic of extreme political sensitivity." He added, "One extreme can be to put all users in prison. On the other extreme, legalization. In the middle there may be more practical policies, such as decriminalizing consumption but putting all the efforts into interdiction." The first thing that regional leaders should do, Santos said later at the summit's opening session, is seriously and collaboratively examine how to tackle drug trafficking "without dogma, without prejudice." "This summit is not going to resolve this issue," he said. "But it can be a starting point to begin a discussion that we have been postponing for far too long." Obama earlier Saturday left the door open for debate, but made it clear that the United States has a firm stance. "I think it is entirely legitimate to have a conversation about whether the laws in place are doing more harm than good in certain places," Obama said. "I personally, and my administration's position is, that legalization is not the answer." Much attention in the run-up to the summit was on the drug issue, as well as on leaders from the hemisphere who are not present in the coastal city of Cartagena, Colombia. Venezuela's foreign minister told reporters Saturday that Venezuelan President Hugo Chavez will not attend because of health reasons. Chavez had recently returned to his country from Cuba, where he underwent cancer treatment. Cuba, which is not a member of the Organization of American States, was not invited to join the leaders. But there was a last-minute push by Ecuador's leftist President Rafael Correa to get Cuban leader Raul Castro a seat at the table. Correa boycotted the summit because of Cuba's exclusion. Santos, a key U.S. ally, said in his opening remarks Saturday that it was time to overcome such issues -- calling it unthinkable if Cuba is not part of the next Summit of the Americas, as well as nearby Haiti. The United States has "never been more excited" to work as equal partners with countries in Latin America, Obama said earlier Saturday -- a vow that's been made before by U.S. presidents, but that nonetheless drew applause from the audience of business leaders. The president presented an upbeat assessment of hemispheric relations, touting a 46% increase in trade between the United States and Latin American and Caribbean countries. "This hemisphere is very well positioned in the global economy," he said. Rousseff spoke of a need for a "virtuous relationship" based on respect and equality among economies, while Santos said he welcomed a "change of mentality in relations between north and south." Obama pointed out one change he'd like to see: "I think in Latin America, part of the change in mentality, is also not always looking at the United States as the reason for everything ... that goes wrong." There are many examples of increased cooperation between the United States and Latin America, but they are not always flashy and don't draw the same type of attention that conflicts do, Obama said. "Oftentimes in the press, the attention at summits like this ends up focusing on the controversies," the president added. "Sometimes those controversies date back to before I was born." The summit's start was momentarily overshadowed by two security incidents -- one involving bomb blasts and another involving Secret Service in Colombia to protect the U.S. delegation. Roughly a dozen Secret Service agents and officers are being investigated over early findings that they allegedly brought back several prostitutes to a hotel in Cartagena, two U.S. government sources familiar the investigation told CNN. The Secret Service personnel have since been sent back to the United States. Separately, two small blasts occurred nearly back-to-back Friday in Cartagena. The explosions -- one near a bus station and another near a shopping mall -- occurred a good distance away from where world leaders were gathering, said Alberto Cantihho Toncell, a spokesman for the Colombia National Police. There were no casualties, and only minor damage was reported, Toncell said. The explosions came on the heels of a similar one earlier in the day near the U.S. Embassy in the capital city of Bogota, authorities said. CNN's Dan Lothian contributed to this report.


Output: NEW: Colombia's president says it is unthinkable if Cuba isn't at the next summit .
NEW: Santos adds the summit can be a "starting point" for talks on illicit drugs .
Obama says debate is fine, but insists legalization isn't an option in the U.S.
The United States wants strong relations with Latin America, Obama says .