Argument: Mines are not essential to deterring N. Koreans
"U.S. Use of Landmines in Korea: Myths and Reality." Prepared by the Vietnam Veterans of America Foundation. March, 2002: "Myth: The U.S. landmine barrier system is a principal deterrent of an invasion by North Korea. Reality: [...] Landmines in the existing barrier are old and many are non-functional. This fact is well known to the North Koreans."