This.

"Well, the correct answer is, he is not a Muslim, he's a Christian. He's always been a Christian. But the really right answer is, what if he is? Is there something wrong with being a Muslim in this country? The answer's no, that's not America. Is there something wrong with some seven-year-old Muslim-American kid believing that he or she could be president? Yet, I have heard senior members of my own party drop the suggestion, 'He's a Muslim and he might be associated terrorists.' This is not the way we should be doing it in America."

Colin Powell, part of his endorsement of Senator Obama. October 19, 2008.

Because more disturbing than the fact that it's a lie is the fact that it's being used as an insult, an obscenity. Being Muslim isn't a crime, it isn't un-American. There's nothing, nothing wrong or negative about it. Muslim-Americans pay taxes just like you and me - they go to school, go to work, raise families. They fight for this country, die for this country, just the same as Christians, Catholics or Jews. By using Muslim as an insult, these people are not hurting Obama, they are hurting the country - a country that claims to celebrate freedom, diversity and equality but, in practice, appears to do none of these things.