US policy in this regard is pretty reasonable: in order to become a US citizen, you *do* have to renounce your previous citizenship. My parents both gave up their German citizenship in order to become US citizens.
But in order for no one to hold dual citizenship, you would also need to have the US strip citizenship from anyone who became a citizen of a foreign country. There are after all plenty of countries that will grant you citizenship on much more lenient terms than the US (they don’t require you to give up your US citizenship). There are countries that may consider you a citizen by bloodline, even if you weren’t born there. Korea and Germany are two such countries. If I filed the right paperwork, I could become a German citizen - and from their perspective this is not a *grant* of citizenship as much as a recognition of it.
So how should the US handle my situation? I suppose it could be required that I formally renounce any possibility of German citizenship, but if the German government itself attached no weight to such a renunciation then my situation isn’t really changed, as I could still apply at any time. Alternatively, the US could opt to revoke my citizenship if at any point the German government recognized me as a German citizen. But again, unless the German government were cooperating with this project, enforcement would be difficult - absent some publication of the information, how would the US know that I had been recognized as a German citizen?
Better to focus on significant problems like people who cross our border without any regard for citizenship or laws. People with dual citizenship really aren’t much of an issue from what I can tell when it comes to things like crime.

I had seen that earlier,,, funny how well enforcement works!

here’s another I just found.
http://washingtontimes.com/news/2008/aug/06/soldiers-cross-into-us-hold-guns-to-agent/

P.S. For the record, admit you opposed the Reagan strategy to win the Cold War.

http://www.worldnetdaily.com/index.php?fa=PAGE.view&pageId=70728

http://www.immigrationshumancost.org/

http://americandaily.com/article/20128

http://www.heritage.org/research/immigration/SR14es.cfm

http://townhall.com/columnists/DouglasMacKinnon/2007/09/07/illegal_aliens_declare_war_on_the_united_states,_part_ii

And lastly one for all you La Raza fans:

http://americandaily.com/article/22827

‘As for a northern fence….I didn’t know that we had an epidemic problem of Canadian illegals crossing the border.’

We don’t yet….

But how much longer before Canadians tire of their socialist state (typified by that horrible medical system) and head south to freedom?

Can’t be too careful.

I’ll bet you did everything possible to oppose Ronald Reagan’s vision to bring down the Berlin Wall!

Only true ignorance can produce such beautiful irony. Thank you Mike, you’ve made my day.

We need a northern fence. I for one would like to see fences around individual states as well. “Nothing says ‘freedom’ like a good fence”.

fit fit, do you own a home? Do you have a fence around the yard? Do your neighbors offend you should they choose to protect their yards with fences?

As for a northern fence….I didn’t know that we had an epidemic problem of Canadian illegals crossing the border.

Do you even understand the difference between a fence to keep people out and a fence to keep people in?

I’ll bet you did everything possible to oppose Ronald Reagan’s vision to bring down the Berlin Wall!

Makes me proud to be a Murcan.

I’m going to get the first really good night’s sleep in a long, long while tonight.

makes a person a bit scared.

Agreed. We need a northern fence. I for one would like to see fences around individual states as well. “Nothing says ‘freedom’ like a good fence”.

It galls me to no end to meet someone in this coutnry [sic] with both US citizenship and that from another country. I beleive [sic] you have to make a choice.

I guess not, Einstein, or there wouldn’t be any people with dual citizenship.

How is dual citizenship affecting you in any way whatever (aside, of course, from giving you the opportunity for some ginned-up poutrage)?