The post-9/11 "unity era" was an era in which people were told to watch what they say. Crazy hippies who suggested that maybe going to war in Afghanistan might not be as awesome as everyone thought were shouted down, and we all agreed that the Dixie Chicks were history's greatest monsters because Natalie Maines said she was ashamed Bush was from Texas.
It was a unity era where some part of the population, along with the White House, the mainstream media, and conservative media had fun shouting down the all powerful hippies. Such an awesome time.