Teacher:In this task, you are given a text of many news articles seperated by special token "|||||". Your task is to summarize them.
Teacher: Now, understand the problem? Solve this instance: A fence runs along a portion of the U.S.-Mexico border in Arizona. President Donald Trump has said he wants to build a fence along the entire length of the border, and Wednesday the first lawsuit challenging his proposal was filed. (Photo: Nick Oza/The Republic) 
  
 The Trump administration has not yet released concrete details to build a wall along the U.S.-Mexico border, but it already faces the first of what could be a litany of lawsuits against the president's signature proposal. 
  
 The Center for Biological Diversity, a Tucson-based conservation group, and U.S. Congressman Raul Grijalva, who represents a broad swath of the Arizona border, filed the suit on Wednesday in a Tucson federal court targeting the environmental and fiscal impact of building a nearly 2,000-mile border wall. 
  
 It lists U.S. Department of Homeland Secretary John Kelly and Customs and Border Protection Acting Commissioner Kevin McAleenan as defendants. 
  
 The 42-page document alleges the federal government's border security enforcement plan fails to comply with the National Environment Policy Act, and asks the agencies to conduct an environmental impact study that is already a decade overdue, just as the bidding process to choose designs for border wall prototypes is underway. 
  
 A 2001 preliminary study was conducted, and DHS was to conduct a more comprehensive study five years later, but it hasn't been done. 
  
 "Border security policy has evolved and changed dramatically since 2001, the last time an analysis was done," said Randy Serraglio, Southwest conservation advocate for the Center for Biological Diversity. "Things are dramatically different now. Border Patrol doubled in size, hundreds of miles of fencing are constructed already, and lots of damage has already been done." 
  
 MORE: What's next: Designs start now, construction planned for June 
  
 Enforcement along the border 
  
 The lawsuit details the effects of enforcement policies over those past 16 years, such as the destruction of wildlife habitat on public lands near the border, and the construction of roads and access points for federal agents. Given these changes, coupled with Trump's plans for a wall, Serraglio said the lawsuit aims to hold the administration accountable. 
  
 "People in the United States have a right to know what the damage is going to be, what it's going to cost, and how effective it's going to be," he said. 
  
 A spokesperson for CBP said Wednesday that they're aware of the lawsuit, but that the agency does not comment on pending litigation. DHS also declined to comment. 
  
 In late February, CBP issued two calls for submissions on designs for border wall prototypes that will be built and tested near San Diego sometime in the summer. Over 200 companies expressed interest, and the agency is reviewing the submissions. 
  
 Congress authorized DHS in 2005 to waive environmental laws for the construction of physical barriers along the border. Since then, they have completed about 550 miles of fencing without analyzing the environmental impact. 
  
 It's widely expected the Trump administration will continue to use these waivers to move forward with plans to build a wall. 
  
 RELATED: 'Game of Thrones,' Great Wall of China inspiration for some Trump border wall ideas 
  
 Questions about funding 
  
 Rep. Raúl Grijalva, D-Ariz., has joined a lawsuit challenging President Donald Trump's plans for a wall along the U.S.-Mexico border. (Photo: Chip Somodevilla/Getty Images) 
  
 Rep. Raul Grijalva, D-Ariz., the ranking member of the House Committee on Natural Resources, said he felt compelled to join the lawsuit because his southwest Arizona district includes nearly 300 miles of the border. 
  
 He said he hoped the lawsuit would not only force DHS to comply with the National Environmental Policy Act, but possibly delay selection of prototype wall designs and moving forward with construction of the border wall itself. 
  
 "There's almost a fiscal reason to really study what we're about to jump into," Grijalva explained. 
  
 "The process for selection might be underway, but the process for funding that selection is still uncertain," he said. "Trump can select away, but the House hasn't appropriated the money he asked for in 2017, and the $2.5 billion it will cost in fiscal year 2018, and beyond that." 
  
 The lawsuit also makes the case for updating environmental reviews to better assess the state of threatened and endangered species, and in particular the jaguar. Since the last study in 2001, there have been numerous jaguar sightings in southern Arizona, the most recent one in early 2017 near the Huachuca Mountains. 
  
 READ MORE: 
  
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 Work on Trump's border wall to begin near Tucson, 2 other locations 
  
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 'Physically imposing': Here are the design specs for Trump's border wall 
  
 Read or Share this story: http://azc.cc/2oppMje ||||| Raúl Grijalva of Arizona joins Center for Biological Diversity in call for environmental analysis that could delay any construction for several years 
  
 A US congressman and environmental group have filed the first lawsuit targeting Donald Trump’s plan to build a 30ft wall on the US-Mexico border. 
  
 The suit, brought by Congressman Raúl M Grijalva of Arizona and the Center for Biological Diversity in the US district court for Arizona, seeks to require the government to undertake a comprehensive environmental impact analysis before beginning construction. 
  
 Watchtowers, drones and a toxic moat: the designs for Trump's border wall Read more 
  
 Such a review would probably take several years to complete, delaying indefinitely the fulfillment of one of Trump’s signature campaign promises. 
  
 “It will take a significant amount of time to thoroughly analyze [the impacts of the wall], and that’s the point,” said Randy Serraglio, a spokesman for the Center for Biological Diversity. 
  
 “What we learned about the border wall in the past 10 years is that it’s hugely expensive, it doesn’t work, and it does a tremendous amount of damage,” Serraglio said. “The people in the United States have the right to know what the damage is going to be, what it’s going to cost, and whether it’s going to be effective. Those are questions the Trump administration is not interested in answering.” 
  
 The lawsuit invokes the National Environmental Policy Act, which requires environmental review of major federal programs. 
  
 The Department of Homeland Security and Customs and Border Protection, which are named as defendants, declined to comment on pending litigation. 
  
 Trump began his presidential campaign in June 2015 with the promise of a border wall to keep out Mexican immigrants, whom he characterized as “criminals” and “rapists”. In the first week of his administration, he signed an executive order calling for homeland security to “begin immediate construction” of the wall. 
  
 Homeland Security has since begun a bidding process for contractors to build prototypes for the multibillion-dollar project. Still, a lack of interest from major construction firms and a lack of funding from Congress may mean that the proposal never moves beyond a border wall beauty pageant expected to take place in San Diego this summer. 
  
 “American environmental laws are some of the oldest and strongest in the world, and they should apply to the borderlands just as they do everywhere else,” Grijalva, a Democrat, said in a statement. “These laws exist to protect the health and well-being of our people, our wildlife, and the places they live. Trump’s wall – and his fanatical approach to our southern border – will do little more than perpetuate human suffering while irrevocably damaging our public lands and the wildlife that depend on them.” 
  
 Serraglio said the existing border fence had already caused significant environmental damage, including flooding and erosion. 
  
 In July 2008, a heavy thunderstorm produced a damaging flash flood at the Organ Pipe Cactus National Monument in Arizona after the border fence prevented water from flowing away naturally. 
  
 On the same day, border infrastructure was responsible for the deaths of two people and $8m in damage to Nogales, Mexico, when water was trapped on the south side of the border. 
  
 Expanding construction on the border could exacerbate the flooding problems, in addition to threatening the survival of species, such as jaguars, ocelots and wolves, Serraglio said. Additional environmental degradation would probably be caused by the construction of new roads and infrastructure to enable construction of the wall in remote wilderness areas. 
  
 The Department of Homeland Security produced an environmental impact statement about border enforcement programs in 2001. 
  
 Thursday’s suit is not the first time Trump’s policies have attracted legal challenges. Both of Trump’s attempts to impose a travel ban on several Muslim-majority countries have been blocked by federal judges. On 5 April, 17 states sued to attempt to block Trump’s efforts to rescind climate change regulations. 
  
 “What’s happening now is not driven by any rational analysis of border security needs,” said Serraglio. “It’s driven by Donald Trump’s ridiculous campaign rhetoric, and that is not a sound basis for public policy.” ||||| An environmental group is suing the Trump administration, saying its proposed wall along the southern border violates environmental law. 
  
 The Center for Biological Diversity filed the lawsuit along with Rep. Raúl Graijalva (D-Ariz.), saying the Department of Homeland Security is obligated to draft a new environmental review to examine the impacts of the wall and other border enforcement activities. 
  
 “Trump’s border wall will divide and destroy the incredible communities and wild landscapes along the border,” Kierán Suckling, the group’s executive director, said in a Wednesday statement. 
  
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 “Endangered species like jaguars and ocelots don’t observe international boundaries and should not be sacrificed for unnecessary border militarization,” he added. 
  
 “American environmental laws are some of the oldest and strongest in the world, and they should apply to the borderlands just as they do everywhere else,” said Grijalva, who is co-chairman of the Congressional Progressive Caucus and the top Democrat in the House Natural Resources Committee. 
  
 “Trump’s wall — and his fanatical approach to our southern border — will do little more than perpetuate human suffering while irrevocably damaging our public lands and the wildlife that depend on them.” 
  
 The green group says its lawsuit is the first against the border wall since President Trump signed an executive order in January to start building it. 
  
 The wall, along with dramatically increased border security, was a key campaign promise from Trump, who pledged that Mexico would pay for it. The Mexican government has thus far refused. 
  
 Greens have long been concerned that a border wall or fence would destroy habitats and cut off migration routes for the species that live near the United States-Mexico border. 
  
 A 2006 law gave Homeland Security wide-ranging authority over the border area and the ability to waive numerous legal requirements to keep the border safe. 
  
 But the Center for Biological Diversity said that the agency is still required to evaluate its environmental impacts. 
  
 The last review under the National Environmental Policy Act, which was a programmatic environmental impact statement, was completed in 2001. The group argues that major changes in border enforcement since then — such as the wall, thousands of new border agents and road construction — necessitate a new review. |||||
Student:
President Trump's plan for a border wall has hit an environmental roadblock with the potential to last longer than his presidency—even if he doesn't choose the design that incorporates nuclear waste. A lawsuit filed in Arizona on Wednesday by the Center for Biological Diversity and US Rep. Raul Grijalva invokes the National Environmental Policy Act to call for an environmental impact analysis to be carried out before the project starts, the Guardian reports. The conservation group and Grijalva, an Arizona Democrat, say the lawsuit is the first to be filed against the border wall since Trump signed an executive order in January. The review it asks the Department of Homeland Security for could take years to complete. Conservationists warn that a wall could be very damaging to wildlife, especially rare species such as jaguars that are known to roam across the border. "American environmental laws are some of the oldest and strongest in the world, and they should apply to the borderlands just as they do everywhere else," says Grijalva, per the Hill. The lawsuit notes that while a preliminary assessment was carried out in 2001, the more comprehensive study that Homeland Security was supposed to deliver afterward is more than a decade overdue, the Arizona Republic reports. Americans "have a right to know what the damage is going to be, what it's going to cost, and how effective it's going to be," says Randy Serraglio of the Center for Biological Diversity.