The U.S. shuld build and maintain a border fence.

How a dual fence worksA dual fence works by slowing illegal crossings enough to permit border patrol agents to intervene. Climbing or breaching the first fence triggers an alarm and is observed on security cameras. The space between the two fences contains additional barriers, such as barbed wire, and also a road for border patrol agents to quickly reach the site of the breach. If stations are 10 miles apart, agents can use the roach reach a site in five minutes or less. That's not enough time for illegal entrants to work through the barriers and the breach the second fence.The figure below shows the design of the 500 mile fence on the Saudi-Iraq border. In this variation of the design the access road parallels the interior fence rather than running between the fences. [from examiner.com, which credits Aztec Security consultants: 14. http://www.examiner.com...] This method of border protection is humane and effective. there are no land mines or electrified barriers; intruders are intercepted and arrested. Most remarkable a fence is an inexpensive method of providing high security. As shown in the last round, the amortized cost would be only $0.2 billion of the $59 billion Homeland Security budget.1. Need for border securityHere are some additional references quantifying the importance of various aspects of border security.1.4 Illicit goods. Agencies of the Department of Homeland Security report, "Counterfeit and pirated goods pose a serious threat to America’s economic vitality, the health and safety of American consumers, and our critical infrastructure and national security. ...The MSRP of seized goods increased from $1.11 billion in FY 2011 to $1.26 billion in FY 2012, with an average seizure value of more than $10,450." [15. http://www.cbp.gov...] The amount of intercepted goods only provides a clue to the size of the overall problem with good not intercepted.1.5 Arms traffic. A border fence is needed to reduce the illegal trafficking of arms from the United States to Mexico. A huge cache of weapons and ammo headed to Mexico was seized near the border in Texas. The arms included "147 AK-47 rifles, bayonets and 10,000 rounds of ammunition" [16. http://www.aolnews.com...]1.6 Tax revenues. Without border security, goods would not be declared and the taxes lost. The are large sums involved. "import tariffs are the second largest source of revenue next to the IRS." The revenue from import tariffs is $29.1 billion. [17. http://www.aolnews.com...]2. Effectiveness of the border fenceBorder fences are used in many places to protect orders. Properly designs fences are proved extremely effective.2.1 "Though not yet complete, the security fence has been successful in reducing terrorism in Israel by more than 90%." "MANY NATIONS WORLD WIDE HAVE BUILT FENCES to separate from their neighbors for economic or security reasons. There are even numerous fences built on disputed land, including a Saudi fence begun in 2004 to cut off the smuggling of arms and people across the porous border between Saudi Arabia and Yemen. Some fences make good neighbors." [18. http://www.standwithus.com...]As of January 2013, "The Ministry of Defense finished the main section of the border fence with Egypt on Wednesday. The 143 mile stretch of fence, from Kerem Shalom to Netafim, took two years to build, approximately half the time that was originally planned for its construction. The fence has all but eliminated illegal immigration into Israel. According to statistics provided by the Prime Minister’s Office, 2,153 illegal immigrants entered Israel’s cities in January 2012 compared to just 36 in December of 2012, all of whom were placed in detention." [19. http://www.algemeiner.com...] "In Saudi Arabia there is a fence that was being built between that country and Iraq so they could interdict the illegal refugees from coming into Saudi Arabia, to keep them out. The Saudi don’t want them in their country, plain and simple! "Some say it is the most technologically sophisticated fence line in the entire world", says security expert Thomas Dunbar of Charlotte, N.C. In Greece there is a fence that’s being built in that broke "bankrupt country" of Greece, between that country and Turkey, to keep the illegals that are entering into Greece from Turkey out of Greece. Even though the Greeks can’t afford it, they are building the fence to keep the illegal Turks from entering into Greece. They don’t want them in the country. In Israel they have built a fence – they designed that fence so that it would be as reliable as possible - it has some wire also . It has got towers and they monitor it, and it has been estimated to be 99.6 % effective." [14] This DebateMy opponent requested that I challenge him on this topic. He has forfeited R2, a conduct violation.Arguments are continued.