Horse sh!t.
Break the law in a foreign country and you are subject to the law of the land. The US consulate isn’t going to do anything for you except tell your family where to find you or the pieces of you that are left.
Ask Michael Fay about the strength of the American consular intervention.
http://en.wikipedia.org/wiki/Michael_P._Fay
I have heard that the executed has been in the U.S. since he was about 3 years old. Mexican citizen????