Why can't the wall to keep undocumented Mexicans from entering the U.S.A. be an invisible, electronic fence?

No. It's fairly easy for humans to get past a taser if they know it is there and can prepare properly. (For example, they could throw rocks at it from a safe distance until it breaks. If it's battery-powered, or they can figure out how to trigger it repeatedly, until the batteries run down. If it's powered by electricity from the power company, then they can cut the wires.)

On the other hand, we are the only species that could get by it without flying or tunneling or swimming. Other species, some of which are endangered, would be killed by it. So it would be an environmental disaster, and would not stop any Mexican humans.

FOR THOSE WHO ARE MISUNDERSTANDING WHERE I'M COMING FROM.....I'll just address Mario, to keep things simple. I think it's your logic that is off. You are jumping to conclusions, and not accurate ones! I do NOT favor any kind of wall. I know Trump is a bozo and his "proposals" are racist fantasies. I voted for Obama 2x and glad I did. I'll be voting for the Dems in November again. My question was sincere though. I'm curious about the economics of erecting a 700 mile barrier....disregarding whether it's a good idea in the first place. My guess is, if there's anything about the border to worry about, it would probably be Islamic fundamentalist jihadist infiltrators slipping in from Mexico. I certainly don't think a wide open border is a good idea. There needs to be a reasonable level of protection. But Trump's idea is a "non-starter" and if any of his GOP opponents think it makes sense to jump on that bandwagon....they're nuts!

Use google maps and go over the border, especially between Texas and Mexico. The border there is a river, the Rio Grande, and it is not straight.

We don't need a fence at all.

Tell the government to stop offering incentives for illegals to come to America such as anchor babies, illegal driver license, free health care, public education, free welfare, and food stamps, and start enforcing current immigration laws and the illegals will stop coming by themselves.

Arizona has already proved this works, when they passed and started enforcing federal immigration laws,,,, the illegals left by the thousands.

http://www.cbsnews.com/news/illegal-immigrants-lea...

Until obama sued Arizona to stop enforcing immigration laws.

http://www.washingtonpost.com/wp-dyn/content/artic...

No, it wouldn't be less expensive; the logistics of such a project would be even more expensive than Trump's wasteful wall. Plus a giant tazer would be more likely to kill you than just render you immobile.

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that'd be good.

a very modest barrier backed by good enforcement works extremely well in the extremely violent ME.

Israel's very firm tactics of border enforcement are widely known.

Cause we live in a world of logic and not some science fiction star wars universe but than again you are a republican so using logic is not your best quality.

Yes lets electrocute all the immigrants good thinking

I say we just use mines