Patrolling the US Border Via Webcam
The BBC features a story today on a controversial effort to patrol the border between Mexico and Texas by means of 21 hidden cameras, the output of which is streamed online for viewers at home, who can then report suspected illegal border crossings; more than 130,000 people have registered to observe the streams, from as far afield as "Australia, Mexico, Colombia, Israel, New Zealand and the UK."
There is a fairly straightforward way to locate the cameras if you have a bit more time than me. Using the time of the sunrise and sunset (and the length of the day), you should be able to get a decent fix on the location (people use the same technique on whales and sea turtles.)
Using the army might work in times of peace, but at present the army is stretched thin by the wars in Afghanistan and Iraq. I doubt that they have personnel to spare. The Roman troops along Hadrian's Wall mostly stayed in the milecastles and the towers on either side. Intensive patrolling was not their strategy. Hadrian's Wall was only 73.5 miles long. The US border with Mexico is 1,969 miles long. To staff it the way the Romans staffed Hadrian's wall would require approximately 50,000 troops.
There is an option for citizens who want to be good guys and snitch on companies who employ illegals and are thus tax cheats.
You can turn in illegals, punish employers who exploit both them and Americans who need jobs, and make a profit.
http://www.taxwhistleblowers.org/main/page.php?page_id=2
"Amount of Form 211 Reward
Rewards range from 1% to 15% of amounts collected (including taxes, fines, and penalties, but not interest) up to a maximum of $10 million."
"This post is an artistic work of fiction and falsehood. Only a fool would take anything posted here as fact."
If they've got the vote, they are no longer "Mexicans". They are Americans.
So that's why the US is one of the few nations not to ratify the Convention on the Prohibition of the Use, Stockpiling, Production and Transfer of Anti-Personnel Mines and on their Destruction (http://en.wikipedia.org/wiki/Ottawa_Treaty)..