Seems like this is coming soon.... and is part of a plan to double flights from the USA to Argentina in the next 18 months. This is great news, and will hopefully spark a little fare war or two to bring down costs of flying down to Buenos Aires.

Here is a link to the news report:

http://www.wfaa.com/sharedcontent/dws/bus/stories/040507dnbusamerican.300e3696.html