It’s one thing to understand the expressions of individuals; it’s another to decipher the tone of an entire nation.  America as a country has gone through a gamut of emotions, particularly in the last decade.  From 9/11 to President Obama’s election, the  public has experienced fear, hope and all the emotions in between.  Click below to see a timeline of the nation’s collective consciousness in the last 40-plus years through the people, trends and events that changed it.