quote:

ORIGINAL: EPGAH

Landmines only kill invaders--hopefully soldiers, but if employed on our own border, would kill a lot of sociopathic "civilians" eager to invade America for a better life.
Far more INDISCRIMINATELY deadly are unexploded bombs and/or artillery-shells, which are meant to detonate and destroy, and eventually will...when they get around to it...The problem being, these defective shells usually go off under the feet of civilians who have either forgotten about them, or actively seek them out to sell them as scrap-metal (The penultimate example of high-risk, high-reward greed!)
You obviously do not know much about land mines.  Something like 34% of U.S. casualties in gulf war 1 were the result of our own men stepping on land mines that we airdropped.
 
This site speaks to the lack of effectiveness of land mines.

http://www.icrc.org/Web/eng/siteeng0.nsf/iwpList74/2E261053DB188697C1256B6600599ABC
As to the other, we wouldn't need a ban on nuclear weapons if America had managed to KEEP the secret of atomic weaponry...well, SECRET!
Are you suggesting that no one besides Americans are smart enough to make a nuclear device?

quote:

ORIGINAL: popeye1250

We (The U.S.) have them on S. Korea's border now for decades and they are very effective in keeping N. Koreans on their side of the border.