Instructions: In this task, you are given a text of many news articles seperated by special token "|||||". Your task is to summarize them.
Input: Animal rights activists have dismissed as "absurd" and "cruel" the American government's plans to bombard Guam from the air with toxic dead mice in a bid to curtail the spread of invasive snakes. 
  
 The US air drop over the the Pacific island is due to commence in the spring, and is aimed at addressing the problems caused by non-native brown tree snakes. Having hitched a ride to the island some 60 years ago on military ships, the colony of reptiles have been deemed responsible for killing off native bird species, biting human inhabitants and knocking out electricity by slithering onto power lines. 
  
 Meanwhile, in Hawaii – some 3,000 miles away – environmentalists fear a similar invasion from the snakes, possibly through unwitting transportation in aircraft that have spent time on Guam. 
  
 But the US Department of Agriculture's plans to reduce the number of brown tree snakes in Guam – population estimates reach up to 2m – have been attacked by People for the Ethical Treatment of Animals (Peta). 
  
 Martin Mersereau, director of cruelty investigations at the animal rights organisation, described the plan as a "clumsy dangerous massacre". 
  
 "Brown tree snakes did not ask to be stowaways on planes or ships and then forced to survive on a foreign island," he said. 
  
 But irrespective of how they got to be on Guam, some residents say the snakes – which are native to Australia and Papua New Guinea – are a menace. 
  
 They can grow to be more than 10ft (3m) in length and can climb poles and trees. Attacks on people have been reported, but their venom is not lethal to humans. 
  
 Birds on the other hand are not so lucky. Experts believe that the reptiles have been responsible for the destruction of Guam's native birds, who are defenceless against the nocturnal, tree-based predators. 
  
 As well as taking a toll on native wildlife, the snakes also threaten the tourist industry of Guam, some fear. The US territory – home to some 160,000 people – relies heavily on holiday-making to support its economy. 
  
 The solution, government scientists believe, is to take advantage of the creature's two big weaknesses – its unfussiness when it comes to food and its susceptibility to a common painkiller, acetaminophen. 
  
 The drug – sold under the brand name Tylenol in the US – is harmless to humans, but is lethal to the snakes. And unlike other snakes, the brown tree variety do not turn their noses up at prey that has already been killed. 
  
 Scientists believe that stuffing dead mice with the drug and then conducting an air drop on areas known to be inhabited by the snakes would be an effective way to reduce their numbers. 
  
 "We are taking this to a new phase," said Daniel Vice, assistant state director of US Department of Agriculture's Wildlife Services in Hawaii, Guam and the Pacific Islands. "There really is no other place in the world with a snake problem like Guam," he added. 
  
 The mice drop – due to take place in April or May – will focus on Guam's sprawling Andersen air force base, from which it is feared snakes could hitch a ride off the island. 
  
 Using helicopters, the dead mice will be dropped by hand, one by one. In a bid to mitigate any danger to other animals, they will be fitted with mini-parachutes meant to catch on the branches of trees. 
  
 Supporters of the scheme say the impact on other animals will be minimal, especially as the snakes have successfully killed off many bird species. 
  
 But the brown tree snakes do have their defenders. 
  
 "Although the snakes are considered invasive, no animal should be forced to endure cruel death," Mersereau said. 
  
 If consumed, the drugged mice would cause renal and liver failure in the snakes, Peta claimed. 
  
 "For reptiles, death could take days or even weeks," Mersereau said. Moreover the method being used is "exceeding indiscriminate" and could cause "great risk to carnivours and scavengers and also to birds". 
  
 But it is a risk that US officials seem prepared to take. They point at the potential cost of allowing further colonies to breed in other Pacific islands like Hawaii. 
  
 A 2010 study conducted by the National Wildlife Research Center suggested that brown tree snakes would cause between $593m and $2.14bn in economic damage each year if they became established in Hawaii. Power outages would cause the most damage, followed by a projected decline in tourism. 
  
 To date, only a few brown tree snakes have ever been found in Hawaii, and none over the past 17 years. 
  
 The mice drop is intended to keep the number of stowaways to an absolute minimum. Even if they are to have their numbers reduced, Peta disagrees with the method. 
  
 Mersereau believes that it would be better to have the snakes trapped by trackers and then euthanised humanely than given a deadly last meal of toxic mice. ||||| In this photo taken on Feb. 5, 2013, U.S. Department of Agriculture wildlife specialist Tony Salas holds a Brown Tree Snake outside his office on Andersen Air Force Base on the island of Guam. The U.S.... (Associated Press) 
  
 Dead mice laced with painkillers are about to rain down on Guam's jungle canopy. They are scientists' prescription for a headache that has caused the tiny U.S. territory misery for more than 60 years: the brown tree snake. 
  
 Most of Guam's native bird species are extinct because of the snake, which reached the island's thick jungles by hitching rides from the South Pacific on U.S. military ships shortly after World War II. There may be 2 million of the reptiles on Guam now, decimating wildlife, biting residents and even knocking out electricity by slithering onto power lines. 
  
 More than 3,000 miles away, environmental officials in Hawaii have long feared a similar invasion _ which in their case likely would be a "snakes on a plane" scenario. That would cost the state many vulnerable species and billions of dollars, but the risk will fall if Guam's air-drop strategy succeeds. 
  
 "We are taking this to a new phase," said Daniel Vice, assistant state director of U.S. Department of Agriculture's Wildlife Services in Hawaii, Guam, and the Pacific Islands. "There really is no other place in the world with a snake problem like Guam." 
  
 Brown tree snakes are generally a few feet (1 meter) long but can grow to be more than 10 feet (3 meters) in length. Most of Guam's native birds were defenseless against the nocturnal, tree-based predators, and within a few decades of the reptile's arrival, nearly all of them were wiped out. 
  
 The snakes can also climb power poles and wires, causing blackouts, or slither into homes and bite people, including babies; they use venom on their prey but it is not lethal to humans. 
  
 The infestation and the toll it has taken on native wildlife have tarnished Guam's image as a tourism haven, though the snakes are rarely seen outside their jungle habitat. 
  
 The solution to this headache, fittingly enough, is acetaminophen, the active ingredient in painkillers including Tylenol. 
  
 The strategy takes advantage of the snake's two big weaknesses. Unlike most snakes, brown tree snakes are happy to eat prey they didn't kill themselves, and they are highly vulnerable to acetaminophen, which is harmless to humans. 
  
 The upcoming mice drop is targeted to hit snakes near Guam's sprawling Andersen Air Force Base, which is surrounded by heavy foliage and if compromised would offer the snakes a potential ticket off the island. Using helicopters, the dead neonatal mice will be dropped by hand, one by one. 
  
 U.S. government scientists have been perfecting the mice-drop strategy for more than a decade with support from the Department of Defense and the Department of the Interior. 
  
 To keep the mice bait from dropping all the way to the ground, where it could be eaten by other animals or attract insects as they rot, researchers have developed a flotation device with streamers designed to catch in the branches of the forest foliage, where the snakes live and feed. 
  
 Experts say the impact on other species will be minimal, particularly since the snakes have themselves wiped out the birds that might have been most at risk. 
  
 "One concern was that crows may eat mice with the toxicant," said William Pitt, of the U.S. National Wildlife Research Center's Hawaii Field Station. "However, there are no longer wild crows on Guam. We will continue to refine methods to increase efficiency and limit any potential non-target hazards." 
  
 The mouse drop is set to start in April or May. 
  
 Vice said the goal is not to eradicate the snakes, but to control and contain them. Just as the snakes found their way to Guam, they could stow away on a ship, or more likely the cargo hold of an airplane, and begin breeding on other islands around the Pacific or even the U.S. West Coast. 
  
 That "snakes on a plane" scenario has officials in Hawaii on edge. The islands of Hawaii, like Guam, lack the predators that could keep a brown tree snake population in check. 
  
 Native Hawaiian birds "literally don't know what to do when they see a snake coming," said Christy Martin, a spokeswoman for the Coordinating Group on Alien Pest Species, a partnership of Hawaii government agencies and private organizations. 
  
 A 2010 study conducted by the National Wildlife Research Center found brown tree snakes would cause between $593 million and $2.14 billion in economic damage each year if they became established in Hawaii like they are on Guam. Power outages would cause the most damage, followed by a projected decline in tourism. The cost of treating snake bites would account for a small share. 
  
 "Once we get snakes here, we're never going to be able to fix the situation," Martin said. 
  
 Though the snakes are native to Australia and Papua New Guinea, Guam is much closer to Hawaii and its snake population is much more dense, meaning it is the primary threat for snake stowaways. 
  
 So far, Guam's containment seems to be working. Only a few brown tree snakes have ever been found in Hawaii, and none over the past 17 years. 
  
 "If we continue doing what we are doing, the chance of success is very high," Vice said. "If what we are doing stops, I think the possibility of the snakes getting to Hawaii is inevitable." 
  
 ___ 
  
 AP writer Audrey McAvoy contributed to this report from Honolulu, Hawaii. |||||
Output:
The US has a plan to deal with Guam's overwhelming snake population, and it's not sitting well with animal rights activists: In April or May, dead mice stuffed with acetaminophen will be parachuted into Guam. As the AP explains, the plan is built around the brown tree snakes' two main weaknesses: They'll chow down on prey they didn't kill themselves and are highly vulnerable to the painkiller (it's the active ingredient in Tylenol). And by attaching the mice to parachutes, which will be dropped by hand one at a time, researchers say they'll lodge in trees, away from other animals. The mice drop has been attempted before, but a Department of Agriculture official says that now, "We are taking this to a new phase. There really is no other place in the world with a snake problem like Guam." That's because the snakes, which invaded the island during World War II via military ships in the South Pacific, have killed off most of the island's native bird species, are dinging tourism, and could do serious financial harm should they make their way to Hawaii. But PETA is not happy, the Guardian reports. The plan is a cruel one, it says, because death by renal and liver failure "could take days or even weeks."