[loneroofer]

an alien lawfully admitted for permanent residence (corporation which is incorporated in the United States,

Perhaps if I phrase the question this way . Suppose I am in jail in Mexico on drug charges. Since I am a US citizen , should the US protect my right to a fair and speedy trial . No. By the same logic should I have the same expectations of privacy from any communication to a foreign country?

[ndt]

"Since I am a US citizen , should the US protect my right to a fair and speedy trial "

Got a story you want to share :)

No, when in a foreign country you are bound by the laws of that country. The U.S. government is not providing your trial, the Mexican government is and they have their own laws and protections. If for example, the Mexican government chose to allow your prosecution in the U.S. then yes, you would have those protections provided by the U.S. government.

"By the same logic should I have the same expectations of privacy from any communication to a foreign country?"

The Constitution is in effect in all dealings between the U.S. and it's citizens where ever they are.