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  2. Border control - Wikipedia

    en.wikipedia.org/wiki/Border_control

    Security along this border is composed of many distinct elements; including physical barriers, patrol routes, lighting, and border patrol personnel. In contrast, the border with Canada is primarily composed of joint border patrol and security camera programmes, forming the longest undefended border in the world.

  3. Automated border control system - Wikipedia

    en.wikipedia.org/wiki/Automated_border_control...

    The typical work-flow of an automatic border control system (eGate) [1] Automated border control systems (ABC) or eGates are automated self-service barriers which use data stored in a chip in biometric passports along with a photo or fingerprint taken at the time of entering the eGates to verify the passport holder's identity.

  4. Border security in the United States - Wikipedia

    en.wikipedia.org/wiki/Border_security_in_the...

    Following 9/11, the border security apparatus was heavily scrutinized and became the target of public criticism. Moreover, border security issues drew additional criticism from the public and from senior officials in the government after it emerged that the 9/11 hijackers held temporary U.S tourist visas, [1] which allowed legal entry into the ...

  5. Barriers to entry - Wikipedia

    en.wikipedia.org/wiki/Barriers_to_entry

    An ancillary barrier to entry is a cost that does not constitute a barrier to entry by itself, but reinforces other barriers to entry if they are present. [ 1 ] [ 7 ] An antitrust barrier to entry is "a cost that delays entry and thereby reduces social welfare relative to immediate but equally costly entry". [ 1 ]

  6. Secure Fence Act of 2006 - Wikipedia

    en.wikipedia.org/wiki/Secure_Fence_Act_of_2006

    The fencing built under the 2006 act was not the first border fencing in the United States. The U.S. Border Patrol first began to erect physical barriers in its San Diego sector in 1990.Fourteen miles of fencing were erected along the border of San Diego, California, and Tijuana, Mexico. In the early 2000s, there were increasing concerns over ...

  7. Perimeter security - Wikipedia

    en.wikipedia.org/wiki/Perimeter_security

    Since at least the Roman Empire, fortifications, walls and barriers have been an important part of protecting sovereign territories and private property. Perimeter security is designed with the primary purpose to either keep intruders out or captives contained within the area the boundary surrounds.

  8. Border barrier - Wikipedia

    en.wikipedia.org/wiki/Border_barrier

    The border posts, forts and barriers between the (Panama Canal Zone) United States and Panama in operation between November 18, 1903, until October 1, 1979, partially and totally the July 1, 1999. The former Soviet Union had a security barrier (see ะก-175 "curtain") along its entire border from Norway and Finland to North Korea and China.

  9. Barrier to entry - Wikipedia

    en.wikipedia.org/?title=Barrier_to_entry&redirect=no

    This page was last edited on 7 May 2005, at 09:37 (UTC).; Text is available under the Creative Commons Attribution-ShareAlike 4.0 License; additional terms may apply ...