I'd like to interject with an opinion: I do not think that the United States cares at all for the Egyptian people, especially the Copts. The United States of America (the government at least) has always and will always seek its own interests. I believe that the United States makes it appear as though their involvement in Egypt's and other Middle Eastern countries' affairs is a humanitarian effort but there is definitely other interests in it for the United States. I hardly think it's because they care about the people living there whatsoever. That being said, the fact that the United States does not have an issue with the Muslim Brotherhood proves that they do not care about the people living there. Why is that? If we look at what happened in Iran when the Muslim Brotherhood took over, that should be enough evidence that the Muslim Brotherhood is not the "right choice" for Egypt (whatever "right choice" means anyway...if you're talking about serving the interests of the United States, then perhaps, in terms of the humanitarian front that they have for their involvement, then absolutely not). I guess we'll just watch and see what happens.
May God protect us and our brothers and sisters in Egypt during these difficult times.