There seems to be an understood list of groups, nationalities, offices, and even people of whom it is politically incorrect to say anything bad. On the flip side, there seems to be an established list of groups, nationalities, and people that are fair game for the media. Just a few include...
The Bush Family
Republicans in general
People who drive SUV's
As for Senator Harry Reid's comments about President Bush, calling him "a loser," the statement falls into a whole new category, not only of demeaning the elected president of the United States of America and the office in general, but also of demonstrating such an immature and impolite character as to embarrass the entire country. Kids call each other such names. Has our society fallen this far, or is Reid an exception?